Is it heavy ?

Hi,
are the add/remove operations in a SortedSet heavy ones or not ?
I have at most 256 Comparable objects but usually
it rarelly goes beyond 150.
The comparable value of these objects changes upon
user action (via a GUI) and each time I need to pull from the set
the Object with the greatest value.
What is the quickest way to get the Object with the greatest value ?
remove the object which value has changed
add the object with new value
get from the set the object with the greatest value
or
do a loop on all the objects (simply stored in an ArrayList for example)
and get the biggest one ?
thanks

are the add/remove operations in a SortedSet heavy
ones or not ?Generally not. On average they're proportional to ln(N) where N is the number of elements.
remove the object which value has changed
add the object with new value
get from the set the object with the greatest value1. This algoritm is proportional to ln(N).
do a loop on all the objects (simply stored in an
ArrayList for example)
and get the biggest one ?2. This is the standard max/min finding algoritm. It's proportional to N.
You can see that the first one has a lower complexity BUT for small N the question of the unknown proportionality constant comes into play. N=256 actually could be quite close to the break-even point where the two algoritms are equally fast, but that's just speculation. For sufficiently large N the first is faster but to know the score for N=256 you'll have to run a test and clock the two.

Similar Messages

Problem with Firefox and very heavy memory usage

For several releases now, Firefox has been particularly heavy on memory usage. With its most recent version, with a single browser instance and only one tab, Firefox consumes more memory that any other application running on my Windows PC. The memory footprint grows significantly as I open additional tabs, getting to almost 1GB when there are 7 or 8 tabs open. This is as true with no extensions or pluggins, and with the usual set, (firebug, fire cookie, fireshot, XMarks). Right now, with 2 tabs, the memory is at 217,128K and climbing, CPU is between 0.2 and 1.5%.
I have read dozens of threads providing "helpful" suggestions, and tried any that seem reasonable. But like most others who experience Firebug's memory problems, none address the issue.
Firefox is an excellent tool for web developers, and I rely on it heavily, but have now resorted to using Chrome as the default and only open Firefox when I must, in order to test or debug a page.
Is there no hope of resolving this problem? So far, from responses to other similar threads, the response has been to deny any responsibility and blame extensions and/or pluggins. This is not helpful and not accurate. Will Firefox accept ownership for this problem and try to address it properly, or must we continue to suffer for your failings?

55%, it's still 1.6Gb....there shouldn't be a problem scanning something that it says will take up 300Mb, then actually only takes up 70Mb.
And not wrong, it obviously isn't releasing the memory when other applications need it because it doesn't, I have to close PS before it will release it. Yes, it probably is supposed to release it, but it isn't.
Thank you for your answer (even if it did appear to me to be a bit rude/shouty, perhaps something more polite than "Wrong!" next time) but I'm sitting at my computer, and I can see what is using how much memory and when, you can't.

Note: Due to heavy load, the latest workflow operation has been queued. It will attempt to resume at a later time

Dear all,
sorry for opening another thread on this.
I think I have a performance issue with workflows attached to document sets in SharePoint. And I say “I think” because people keep telling me that this is the way it just is.
The user creates a new document set, which triggers a workflow in which the user has to confirm/review/approve a series of tasks. The time it takes from clicking the OK button on those task form to the workflow status moving to the next step is about 4 seconds.
And visiting that status page within those 4 seconds brings up the infamous “Note: Due to heavy load, the latest workflow operation has been queued. It will attempt to resume at a later time.” message.
Hitting Refresh in the browser after those 4 seconds will make the new workflow status appear and the red text go away.
Is that normal? Is that the performance that everyone else is seeing as well?
I struggle to see why simply moving a workflow from one task to another should take that on a machine that isn’t doing anything else at the time.
(1)
I have a standalone (non-clustered) SharePoint box, 4 CPUs, 8 GB of memory, more than half of that available, acting as application server and wfe; only the database is on different box.
(2)
The CPU only goes up to 18 or 19%, so CPU does not seem to be the bottleneck. Half the RAM is also still free.
(3)
The workflow is designed with Nintex, and has about 9 flexi and review tasks – the last 2 of them in a loop iterating over typically 3 or 4 items.
(4)
Looking at the logs it looks like the processing in Nintex only takes about 1 second – I don’t know where the other 3 seconds are going.
(5)
There is nothing obvious in the logs.
(6)
We’ve looked at all the “theoretical” improvements around throttling and batch sizes etc. – none of them appeared make any difference. And the workflow is so small that it looks like my tasks gets executed straight away. The problem appears
to be that the execution takes too long(?) and therefore has not finished by the time the page get redrawn.
(7)
I am running perfmon and I can e.g. see one(!) workflow being loaded into memory – as expected as I am the only user.
(8)
I am seeing a total of 3(?) SQL queries being executed(?). I get the Bytes Sent/sec spiking at 25K, and Bytes received at 18K. But is this good or bad or a bottleneck?
Where do I take it from here?
I have been told that “[…] most customers have no issue with this as they are used to the way SP operates and it can be slow at times.” Is it really that bad?
If it is worth watching more performance counters then I’d need to know what to compare them to.
Is there something else I am missing?
Thanks
Martin

Hi,
Before considering an additional hardware try to change following configurations for workflow:
Increase Throttle Size
Increase Batch Size
Time Out
Workflow Timer Interval
AutoCleanUpDays
Increase Throttle Size
The Workflow throttle setting controls how many Workflows can be processing at any one time on the entire server farm. By increasing the throttle it will allow the number of Workflows execution or can be initiated at a time.
Use below PowerShell command to get the current Throttle Size:
Get-SPFarmConfig | Select WorkflowPostponeThreshold
Use below PowerShell command to set new Throttle Size:
Set-SPFarmConfig -WorkflowPostponeThreshold 100
Increase Batch Size
This is the size that determines number of events processed for a single Workflow instance. Default value is 100, but it can be range from 1 to any number.
Use below PowerShell command to get the current Batch Size:
Get-SPFarmConfig | Select WorkflowBatchSize
Use below PowerShell command to set new Batch Size:
Set-SPFarmConfig -WorkflowBatchSize 200
Time Out
This decides the time out of the Workflow event. The default value is 5 and can be any integer. The time is in minute.
Use below STSADM command to get the current Time Out value:
stsadm -o getproperty -pn workflow-eventdelivery-timeout
Use below STSADM command to get the current Time Out value:
stsadm -o setproperty -pn workflow-eventdelivery-timeout -pv “15″
Workflow Timer Interval
This setting is applicable at Web Application level and not the farm level. The workflow timer interval specifies how often the workflow SPTimer job fires to process pending workflow tasks. This interval also represents the granularity of delay timers within
your workflow. If a timer is set to delay for one minute, but the interval timer fires only every five minutes, the workflow delays for five minutes, not one minute.
Use below STSADM command to get the current Workflow Timer Interval value:
stsadm -o getproperty -pn job-workflow -url <Web Application Url>
Use below STSADM command to get the current Workflow Timer Interval value:
stsadm -o setproperty -pn job-workflow -pv “Every 10 minutes between 0 and 30″ -url <Web Application Url>
Here is the url for reference :
http://praveenkasireddy.wordpress.com/2013/06/14/workflow-due-to-heavy-load-the-latest-workflow-operation-has-been-queued-it-will-attempt-to-resume-at-a-later-time/

Due to heavy load, the latest workflow operation has been queued. It will attempt to resume at a later time.

I have SharePoint 2010 Enterprise running SP1. Configuration is one SharePoint server in the farm and a SQL 2008 R2 database for the backend. Our user environment is 80 users with very little load on the SharePoint server. I have the workflow timer
set to 1 minute.
I have a SPD workflow that starts manually on a form library. Whenever I publish a new version of the workflow, the next time I start the workflow it takes the full minute to finish. If I click on the workflow status before it finishes, I see the message
"Due to heavy load, the latest workflow operation has been queued. It will
attempt to resume at a later time.". After the minute completes the workflow finishes.
Here's the weird thing, the next time I start the workflow, it runs in a couple of seconds - almost instantly. I've tried up to 15 times after the inital publishing and everything seems to work fine on initiation.
Well, that would be fine for me, however, I intermintantly get this heavy load message during task processes that are running inside the workflow. It's probably less than 5% of the time. It's really frustrating though so I appreciate some help. I'm look
online and haven't found anything that describes my situation.
Thank you in advance!

Hi,
Before considering an additional hardware try to change following configurations for workflow:
Increase Throttle Size
Increase Batch Size
Time Out
Workflow Timer Interval
AutoCleanUpDays
Increase Throttle Size
The Workflow throttle setting controls how many Workflows can be processing at any one time on the entire server farm. By increasing the throttle it will allow the number of Workflows execution or can be initiated at a time.
Use below PowerShell command to get the current Throttle Size:
Get-SPFarmConfig |
Select WorkflowPostponeThreshold
Use below PowerShell command to set new Throttle Size:
Set-SPFarmConfig -WorkflowPostponeThreshold
100
Increase Batch Size
This is the size that determines number of events processed for a single Workflow instance. Default value is 100, but it can be range from 1 to any number.
Use below PowerShell command to get the current Batch Size:
Get-SPFarmConfig |
Select WorkflowBatchSize
Use below PowerShell command to set new Batch Size:
Set-SPFarmConfig -WorkflowBatchSize
200
Time Out
This decides the time out of the Workflow event. The default value is 5 and can be any integer. The time is in minute.
Use below STSADM command to get the current Time Out value:
stsadm -o getproperty -pn workflow-eventdelivery-timeout
Use below STSADM command to get the current Time Out value:
stsadm -o setproperty -pn workflow-eventdelivery-timeout -pv “15″
Workflow Timer Interval
This setting is applicable at Web Application level and not the farm level. The workflow timer interval specifies how often the workflow SPTimer job fires to process pending workflow tasks. This interval also represents the granularity of delay timers within
your workflow. If a timer is set to delay for one minute, but the interval timer fires only every five minutes, the workflow delays for five minutes, not one minute.
Use below STSADM command to get the current Workflow Timer Interval value:
stsadm -o getproperty -pn job-workflow -url <Web Application Url>
Use below STSADM command to get the current Workflow Timer Interval value:
stsadm -o setproperty -pn job-workflow -pv “Every 10 minutes between 0 and 30″ -url <Web Application Url>
Here is the url for reference :
http://praveenkasireddy.wordpress.com/2013/06/14/workflow-due-to-heavy-load-the-latest-workflow-operation-has-been-queued-it-will-attempt-to-resume-at-a-later-time/

Solved! All-in-Ones Misalignment on Costco or Heavy Photo Paper Issue

Hi, after much frustration, I finally came upon a solution to the issue of misalignment when printing heavy (Costco or HP Premium) photo papers. My printer is networked and connected via the router. This fix will probably work with other All-in-Ones as well. (I haven't tried this on business cards yet but will post back when I do). By the way, I'm using Windows 7. This is a very wordy post in order to get all the steps and make it easier to follow. Here goes.
Devices and Printers/Add Printer - this is so your original printer file does not get damaged. Also you might want to create a Restore Point.
Before adding your new printer, check under Devices and Printers/right-click current working printer/Printer Properties (not "Properties")/Ports/. Make note of the port that is current being used and working. You will use this same port on the newly added printer.
Device and Printers/Add Printer/Add Local printer/Under Use Existing Port hold down the arrow at right and select the working port you made note of in step 2.
Select HP on the left/HP OfficeJet 6500 709a on the far right (this is a generic printer driver specially made to fix printer issues like this)/Next/Do not share this printer/Next.
Do a test print on plain paper at the end of install.
Now to print your photo:
Clean the printer rollers(I cleaned the ones on the back door where you clear a jam) with an electronic cleaning wipe (maybe alcohol and paper towel will work, too). This is because I think the printer has a hard time picking up the heavier glossy paper after some years of collecting soil and dust on the rollers so it slips - just my theory.
Select the photo/s you want to print. (I was trying to print a simple photo index/contact sheet. 8.5"x11" using Costco paper. The contact sheet in Explorer is located as you scroll down the options on the side). I was printing directly from Windows Explorer window in the folder where the image was located.)
Print/Select the new printer you just added/paper size 8.5x11/HP Premium Photo Paper/Fit to Picture Frame/Options/Features tab/Borderless unchecked/OK/Print
Result - a beautiful print like the kind HP is known for. Now, whenever you need to print something on heavy photo paper just select this printer. When finished, go back to your default printer.
It is my sincere wishes that this helps somebody who has been as frustrated as I have been not getting this feature to work. Now onto the business cards solution...

Thank you for the information.
Does anyone really think that HP or Avery will print this work around in their documentation?
Does HP OfficeJet 6500 709a printer exist on all software editions from HP? And how did YOU know that "this is a generic printer driver specially made to fix printer issues like this"? No one else figured that one out- who told you?
"Clean the printer rollers(I cleaned the ones on the back door where you clear a jam) with an electronic cleaning wipe (maybe alcohol and paper towel will work, too).This is because I think the printer has a hard time picking up the heavier glossy paper after some years of collecting soil and dust on the rollers so it slips - just my theory." Problem: people have had the HP business card printing problem with brand new printers- certaintly without years of soil or dust on the rollers.
How should a user, unfamilar with those gyrations you described above, go about using the printer? The basic issue is that these printers DO NOT work for Avery and other business cards unless you know how to do the actions described.
"The sheet stock business card printing problem you are having is a well documented process or product defect that newer HP printers seem to have. Others have said that older HP printers did not have this problem. I echo that experience also. There are multiple questions on these forums with various answers (revert to older printer drivers, change paper type chosen in printer setup, change brand of card paper) but the end all is that HP printers or all in ones cannot print Avery business card sheet stock with any type of repeatability or consistency due to the wandering margin issue. It is unknown whether this is a software or hardware issue or or paper issue or combination of these."
The best solution seems to be to consider a printer that feeds almost straight through versus up and around. If HP has this type of printer you could consider it. Otherwise there are alternative printer brands that feed straight through that may be better for printing sheet stock business cards.
avery, business cards, cards, margin error
http://h30434.www3.hp.com/t5/Other-printing-questions/Avery-sheet-business-card-printing-problem/m-p...

Why is my iPhone 5s heavier than it should be?

What could be the reason for my iPhone 5s feeling heavier than my friends iPhone 5s.
I weighed it and it is 4-5 grams heavier than the specified 112 grams it is meant to be.
It was a replacement/refurb phone because the first one i got had some issues.

When you found the weight in the tech specs ,you omitted to read the footnote "2"
2. Size and weight vary by configuration and manufacturing process.

Heavy battery drain in iOS7 with iPhone 5

Hello everyone,
As soon as Apple announced its newer upgrade, iOS 7, i've installed that but i noticed a heavy battery drain in my iphone 5. For example, yesterday night i charged my phone to 100 % and by today's morning it was at 77% ( without any usage). I can see the battery percent decreasing with my eyes. in iOS6, i used to get 24 hours stand by and 7 hours usage in 3g cellular and wifi but in iOS, i didnt even get 3 hours of usage in 3g cellular or wifi.
I got an error after downloading of 753MB of iOS 7 upgrade, i guess it is something like "error in downloading or something" and i discarded that error message and it was asked me to click on "install" option and it was restarted and installed the new OS to my mobile. Everything seems good except battery drain and weather app, which always shows "Haze" even though my city was experiencing thunderstorms. A half sun covered by clouds or ground in the "Now" position. Not even updating.
I tried restarting and resetting the phone with network settings but of no use.
Any help??
Thanks

I wouldn't restore at this point.
I would do this: re-calibrate the battery.
Let the battery drain until the phone is completely dead. (the iPhone powers-itself off!)
plug it in and allow it to charge to 100% [do NOT use it, do NOT unplug it]
This will re-calibrate the charging circuitry with what is reported. It's often likely that the battery report is a false one.
At 100% charge, use the phone normally and watch the performance of the battery.
-Alan

How do I export a video without a heavy blue cast

I use imovie 3. I can download and edit my movies. The finished product looks good on the computer. However, when I export, the video has a very heavy blue cast even when viewing on the computer. But, if I export as an email or web file then the colour is ok but the quality is poor. I would like to copy some of my videos on to cd's with correct colours. Any ideas??

You can only export in the same resolution that you imported.
That is if you shot in 720p you cannot export in 1080p.
Share > YouTube and select the highest resolution available.
Z.

Brain pick on an old problem of mine (squealing and poping sound when system is under heavy loa

Firstly, my apologies if this post gets double posted as I am on a barely functional dsl connection? It get?s flaky when it rains which is only periodically for about 2 months of the year?
I was wondering if someone in the know might be able to clue me in as to any fixes for this VERY old issue of mine.
I have already searched a bit and all I found was the squeal and crash issue, mine is similar but not identical.
History:
I have been a creative card user since the first SoundBlaster came out (and jammed it into a 286 system). Well I think it was the first since I was new to computers then?
Anyway I have had an SB, SB6, SB6AWE, SB Li've, and now SB li've Audigy 2 ZS. Pretty sure I had an audigy pro card (a family member was upgrading so I grabbed theirs for cheap).
Since around the audigy series of cards I have been working on friends and family member?s (and their friends/family) on the side. Though these days I am not a happy camper.
Problem:
I am having this problem that I have now learned to li've with where when I am playing sounds (game or music) and the system gets under some type of heavy load I get LOUD squealing and popping sounds (mostly the squealing kind). The sound can be in excess of my volume settings and I tend to wear headphones (I can't believe I wasn?t deafened the first few times and occasionally recently when I forget, actually I have been having trouble understanding people lately, need to get my ears checked I guess).
Heavy load defined:-On occasion copying files from one dri've to another (usually large files in this case).
-Always when copying files over a network to or from my system.
-in few cases of a network heavy or hard dri've heavy application (lan games anyone?) ? Mostly when I am hosting.
NOTE: for the most part the card works fine in games as I usually don?t do something else while playing a game, usually.
For how long?:
This is hard for me to place. I remember wanting to upgrade to 2k when it came out but I heard from friends that had tried to upgrade that the drivers for the sb6 awe or any other creative card were garbage so I delayed upgrading to win2k till I got my first + ghz system and didn?t have much choice. I have been dealing with this since (also at the time I had an audigy or perhaps just a li've, hard to place).
Steps to solve this (not resolved yet):
I have tried several different configurations, this problem has been present on both an amd and 2 (or more) different intel chi
ps.
The problem has not been present on non-creative products under 2k (yes I had a card made by the company that creative bought out a while back), driver updates have done nothing or made it worse (though recent drivers seem to be a little better).
A while back (on the amd machine) I tried dealing with creative via e-mail and got canned responses of things I had already tried (and had noted in my request for help that I had already tried them) even as far as completely clean installs and as I mentioned different systems.
I am now using completely different hardware besides the sound card. Swapping out for other soundcards doesn?t help if they are creative cards (I even went as far as trading someone else identical cards to no avail).
I have even tried windows xp to see if that would help, nope.
The only solution to this so far has been not to use the card and for a while now I have been suggesting to friends and family to just use the internal on mobo sound instead of an add on creative card.
I have even had someone else build me a system (as apposed to my building it) just in case I was doing something weird, no help.
That and just not listening to anything when I am about to put my computer under a heavy load (and making sure to disconnect the phones just in case since sometimes it happens without sound playing, RARELY).
Current system specs:intel p4 2.66 ghz
Audigy 2 zs (platinum if memory serves, pretty sure here)
Geforce 6800gt
gig of ram
(I would have to hunt around for other details like mobo)
I have to say all this effort to get one companies hardware to work just sucks and what sucks more is I have no choice on the market, there is only one noteworthy sound card company when it comes to gaming, on the plus side there isn?t much for me to look forward to in gaming these days? I don?t like MMOs (if I can't play in on a lan and just the people on the lan I don?t care for the game much). Halflife (the reason I bought the geforce 6800 gt card) renders the world in such a way as to make me motion sick (just like all the quake games) so that was a waste of money?
The reason that there isn?t much to look forward to in gaming is because I can just disable my creative card and enable my onboard mobo sound and actually hear sound while doing stuff as apposed to garbled deafening screeching sounds that I do now when I forget to stop sound before doing something hard on the system?
Personally this is a last cry for help before I completely give up, I am already a very disenchanted customer hoping there might be some way that I can just listen to music or play games without much worry about sound (the squeals can be heard from across the room from the headsets set at a normal volume so you can imagine what that?s like when they are on my head). I have already, for the last couple of years, been steering people away from creative products in general touting their core product a failure and the people that didn?t believe I just let them sit and listen to some music and then copy a file?
Sound and music are almost more important to me than graphics btw, I have returned games for poor (in my opinion) quality sound tracks (mostly EA products) and have bought games that had good sound/music but poor graphics, heck I still play some old dos games (loom anyone).
Sorry the end there got a little ranty, so anyone have suggestions to the problem section?
One last thing: This took me a while to find and is a bonus to anyone that read all that? For some relati'vely cheap 5. headphones (all I had looked at were over $00) check out the zalman headphones. I have had mine for well over a year now and they still sound just as good as when I got them (even after the ear shattering squeals) and only cost me $50) They are sturdy too (more than I expected), I tend to break headphones within 5 months even some nice $50 stereo ones and these things are still intact. By break I mean break a wire, blow a speaker (squeals) (not literally exploded), snap the headpiece? I can't seem to see a direct link to the speakers so google zalman and headphones?

I don't know if anyone is following this or cares much but I thought I would add some info for those that like me before signing up, simply searched and found some useful tidbits. I also didn't see an option to edit my previous post as most boards I post on have that option to give you an alternati've to double posting...
My system was gigabit however I only had cat5 cable with a megabit switch. Now the switch is gigabit with a cat5e cable and a short distance from me to the hub (same system otherwise). The gigabit is onboard.
I figured I would see a bit speed boost with the new network and indeed in games I did see an improvement on large data transmitting games (American Conquest 4x4 maps in multiplayer LAN) however I expected file transfers between me and other gigabit on mobo cat5e systems would be significantly better. Instead I saw speeds only slightly better than before, around to 2 megabytes per second (using a measurement tool Netstat li've from AnalogueX) and that annoying screeching. At those speeds that might explain why the game was still on the jerky side (a full blown 4x4 map the way we play stresses all computer components but network seemed to be the bottleneck).
My solution to getting fast file transfers? Disabling my sound card by going to device manager right clicking on the Creative SB Audigy 2 ZS item and choosing disable. With an acti've file transfer (large single file rather than small files) I saw about -2 megabytes per second. Within moments of disabling the soundcard I suddenly had about 20 megabytes per second and the estimated time went from 0 minutes to almost finished...
I have to say on an aside that this just adds to my disappointment with this card (and the fact that I have seen similar poor performance in other peoples cards set up by me or not). This continues to cast a light of doubt for me and future creative products. I have to say though that the X-Fi (after fully updating drivers) seems like it *MIGHT* be worth a try? I certainly won?t drop any money into a new creative card (or recommend creative computer equipment) until I see some good proof that problems such as those that plagued this and other creative cards are gone.
Now remembering several posts I read here (and why I am even posting this), I tried disabling some of the features of my nice Creative card (through the various consoles for example the EAX console). Indeed I did see a performance boost (more on that later) as well as death to the squeals (though oddly I did hear that odd electrical interference noise that is supposed to be why onboard audio sucks) and my ears thanked me for that. As for performance my transfer rates went from -2 megabytes per second to a whopping 4-8 megabytes per second (mostly 5). I am definitely leaving those special features disabled for bandwidth intensi've games, after all they are mostly meant for movie and music enhancement (though they make some games sound nice too). I should note that the squeals, though not deafening, are present with other separations in playback, during file transfers. This isn?t much of an issue for me since win2k (and XP) lets me disable and enable my sound card at will without reboots (most of the time) and it has become habit to work around my sound card in this way already.
I know that there is a limited bandwidth on the system bus between all devices however I just have to wonder why my SB Audigy card is using up so much bandwidth when not doing jack... That and I thought that limit was much higher than 20 or so megabytes per second which has me wonder just how much this sound card is wasting (and possibly stressing) in my system when not doing anything. My guess though is the sound card is merely interfering with PCI traffic and not acti'vely using it (though I am not aware of tools to check this). This might explain why I have gotten less than stellar performance out of other hardware though I have yet to try pushing my system with the sound card off yet?
While I still can't recommend creative sound cards to customers at least I can't say that Creative doesn't make anything worth buying anymore (and I used to be a huge creative advocate). The new Zen mini player got pretty good praise (search maximum PC for the review).
Assuming this thread stays open I will add more of my hopefully useful experience with this sound card. If on the other hand it'ss closed up (since there were a few unkind comments) I should have to assume that Creative has completely turned it'ss back on me as well as my current and future customers (unless some other reason for closing is given of course). As it is now I see signs of improvement in the companies? products (which pleases me to no end) though not yet enough to justify my spending or recommendations, besides the portable device, though I have no interest in devices that don?t allow for flash memory expansion I have been asked about them on occasion.

MacBook Air or Pro for 2012 Student (heavy multitasker)?

Hey Apple Community,
Brief Background: I have been using the MacBook (December 2010), and it has been a boon - but it is time to move on. I waste anywhere between 1-3 hours just waiting for it to load, or else having to reboot it and open things again. Whatever I do, within an hour of use it just lags to the point where I end up doing my work on my iPhone or relocating to the school library where I can use a PC.
As such, I want to buy a new MacBook. I will be writing two books, doing academic research, and soon starting my JD.
I need a computer mainly for the following tasks:
- Word processing et al (pages, word, powerpoint)
- Internet (heavy multitabbing ... I mean very heavy)
- Internet streaming films, shows, etc.
- Music (Itunes)
Perhaps most defining, I do all of these at the same time, utilizing Apple's 'Spaces' feature to the max - so the chosen mac would have to be very Multitask-Friendly (VERY!). I want something that will be able to effortlessly hold up all of these tasks at the same time. Harddrive space is less important (I am willing to put all of my music, movies and photos on an external harddrive if necessary). I'd like a computer that can do all of this very quickly, and would also be very portable (but I think the Pro is lightweight enough).
I am leaning towards the MacBook Air.
I would be grateful for any help at all.

I think the MBair would meet your needs. Here's a comparison with the MBpro.
http://news.cnet.com/8301-13579_3-57458148-37/13-inch-macbook-air-vs-13-inch-mac book-pro-which-should-you-buy/?tag=postrtcol;posts

Firefox 3.6.8 still having problems loading heavy Flash websites

Upgraded to latest 3.6.8 Firefox version and noting it is still having issues loading heavy flash websites. Takes 5 to 6 times longer to load a webpage if there is Flash on it. I do have the latest version of Flash installed according to Adobe's website so that's not the culprit. Will be uninstalling this latest version and rolling back to the copy of 3.6.3 version I kept which worked great with all flash websites. Waiting for the problem to get fixed before I update again...hoping they can fix this. I noticed this problem starting back with version 3.6.6 and still hasn't been fixed with 3.6.8...
== URL of affected sites ==
http://www.tsn.ca

The problem affects this page: [ http://gronnbil.no/biler]
The strange thing is that whenever I load the page with Firebug activated for this page, it renders the Flash instantly. But hardly ever (it does happen now and then, but mostly not) when I'm not using Firebug. I have tried disabling all plugins, running in Safe Mode, but it didn't help. I use Mac OS X 10.6.4 64-bit, FF 3.6.8. Ideas, anyone?

A Single POP Sound from Left speaker, after system heavy load.

Hello From Russia)) I bought Brand New Macbook pro 15" Late 2011 Ci7, this is incredible machine. But a month past and i started to notice a very strange behavior:
When i using mac for resource "Eating" application or processes my computer starts to Heat-this is normal.
When i close all the apps here starts interesting) I have Istat installed, so i can see what temps are in my system. Computer is cooling, and when cpu reaches 50-55 degrees (Celsium, from 80 degrees, because of heavy load) ,my left speaker produces a single loud pop sound. (like something turning of may be)
In other terms of use absolutely is fine! It is very strange and i dont know is normal or not(
Thank you very much, and sorry for my english.

That is not something I would expect. I would go to a repair facility and have it checked.
Ciao.

Images opened in ProPhoto RGB has heavy banding

HI,
I am a photographer, and I shoot Canon 5D and 1Dmk3, shooting RAW and in AdobeRGB.
If I open a correctly exposed CR2 file in Camera Raw, applying no changes at all to the photo, open it as ProPhotoRGB 16-bit, I get heavy banding in the shadows and gradients when the image opens in PS.
If I then try to use a brush (normal soft tip), I also get heavy banding and posterization on the transitions between the different shades of that brush.
I have double checked that my image, when open in PS, is indeed 16 bit ProPhoto RGB.
If I open the same image in Camera Raw, but change the color space to Adobe RGB, these issues are gone!
Late 2013 27" iMac with 24GB RAM, 750GTX with 2GB VRAM.
RUnning OS X Yosemite 10.10 and latest PS CC 2014.
DIsplay is calibrated, and these issues does not show when opening the same CR2 in Aperture.
ANy ideas.

I Should add, that if I create a new empty document with the same settings (ProPhotoRGB/16bit/300dpi), the same brush works fine.
I recently did a shoot where I used a dark grey seamless background, and any given image looks great in Lightroom and ACR (imported as DNG), but when editing the same image in PS with the settings above, I get banding, pixelation, and posterization in the shadows, and in the light falloff on the grey background.
Using raw files directly makes no difference from a DNG version...
Again, change just the color space from ProPhoto to AdobeRGB, issue goes away most of the time.

Multiple tabs with flash or heavy js crash firefox

Has been may years already that this keeps happening to me if i open around 150+ tabs (depends on the content of the tabs) or if i open 20+ tabs of youtube (might happen with other video platforms too but i haven't tested that) makes firefox crash after a brief amount of time. I've been using the same profile since mid 2012 but I do make clean new installs of firefox when a new whole version comes out. My pc hardware i think is more than suitable to be able to have that ammount of tabs open (12 GB RAM triple channel ddr3 1ghz intel i7 950 @ 3.07ghz 1024MB ATI AMD Radeon HD 6800 series on w7 x64).
I tried creating a new clean profile and opened 50 youtube tabs have all of them playing at the same time and even though at the start there was some kind of slowness for the firt 10 seconds then all was perfect and I tested it for like 5 mins and it didnt crash. Back with my profile I used the about:addons-memory to see fit here was any leak of memory from the addons but the addons consumption was really low. Although firefox itself with 150 tabs uses like between 900 and 1400mbs of memory. I've tried disabling all the add-ons and then enabling some to see if there was a conflictive add-on but i couldn't find whats causing the problem so i wanted to ask you guys if you could lend me a hand so i can finally can open as many tabs as i want without having to fear a crash.
Here are some crash reports
https://crash-stats.mozilla.com/report/index/ed544757-c6e5-4590-b2fa-ec3552140418
https://crash-stats.mozilla.com/report/index/e2256729-811b-4dcd-8d6a-6d0012140421
https://crash-stats.mozilla.com/report/index/a1648f3c-c5a4-41d9-b6fa-415cd2140430
https://crash-stats.mozilla.com/report/index/ec77ddb5-3be7-4268-a515-7195b2140425
I only have flash and java Plugins on and they are up to date.
Addon list:
Adblock
session administration
adblock element hider helper
autopager
bartab heavy
empty cache button
all tabs helper
anonymox
classic theme restorer
spanish Venezuelan dictionary
downloads window
mem chaser
menu icons plus
multiple tab handler
no script
places cleaner
restart aplication
roomy bookmarks
scriptish
self destructing cookies
site favicon in urlbar
snap links plus
Tab Granade
tabmix plus
text link
text area cache
wot
xmarks

I had/still have an issue with FF which is virtually identical to this (se https://support.mozilla.org/en-US/questions/988435?esab=a&s=&r=0&as=s).
Mostly on script/flash heavy pages (like YouTube, Google Play, Twitter, etc) with only a small number of tabs will result in nearlly 1-1.2GB RAM usage and eventually crash. Having looked through older crash reports here is a list of the most common problems (Note: I recently tried a fresh install so don't have the Crash Report Numbers for these anymore):
Crash Cause
js::ScriptSource::hasSourceData() x 3
NS_ABORT_OOM(unsigned int) x 5
gfxContext::PushClipsToDT(mozilla::gfx::DrawTarget*) x 10
js::AutoCompartment::AutoCompartment(js::ExclusiveContext*, JSObject*) x 7
Of Which
EXCEPTION_ACCESS_VIOLATION_READ x 21
EXCEPTION_BREAKPOINT x 5
I used to be able to run FF with almost 60+ Add-ons up to 60+ Tabs and still have it work more or less OK; obviously it could be rather sluggish and was eating into 1GB RAM or so, but it at least worked. Now I can barely run it with 53 Add-ons and less than 10 Tabs for around 30 mins to 1 hour before an inevitable crash.

Why does Back to My Mac slow to a crawl under heavy GPU usage?

I run Back to My Mac so that I can access my Mac Mini sitting at home from wherever I am on the road using my Macbook Pro.
I noticed that even with next to nil CPU usage, Back to My Mac runs normally when I have nothing else running, but slows to a crawl when I have GPU-intensive applications such as BOINC or Asteroid running.
What's even more weird is that screen updates seem to be timely and I can see what's happening on the computer in real-time right away. What becomes completely unresponsive are mouse clicks and keyboard presses, which I would think use a very miniscule amount of bandwidth and CPU. Most of the heavy lifting for a remote screen sharing session is actually transferring what's showing on the screen over the Internet, right?
Does anyone know if this is a reported bug and if there's an upcoming fix for this?
The Mac Mini I'm using is a Late 2009 with 8GB RAM and an SSD inside.
The MacBook Pro I'm using is a Late 2011 with 16GB RAM and an upgraded hybrid hard drive.
Both are running the latest version of Mavericks with all system updates installed.

Here is how I fixed it, sort of. I configured the Time Capsule (TC) in Bridge Mode behind the AT&T Gateway. Connected the TC to Gateway with ethernet cable. Port 3 of Gateway to WAN port on TC (the one with the circle above it). My desktop iMac is wired to a port on the TC. If the iMac is asleep, it will not be visible to a laptop (in the laptop sidebar) on the WAN side of the Gateway or one using the Gateway wireless network.
I set the iMac, using Energy Saver, so that the CPU never goes to sleep. Unless I force the iMac into sleep mode, it is now visible to a laptop on the WAN side of the Gateway and using the Gateway wireless network. "Wake for network access" has always been checked. Everything seems to work now with Back to my Mac as advertised.

Mountain Lion 10.8.2 Heavy background disk activity but not time machine

Since accepting the Software update that puts my version of ML as 10.8.2 I have began to notice a regular (every hour) constant heavy activity in one of my drives (yet to identify which one).
The said drive(s)?? whirr up and carry out activity that sounds as if it were carrying out a time machine backup BUT there is no indication that time machine is carrying out its job nor are any of the backups date/time stamped for the activity taking place.
Any ideas as to what is happening would be greatly appreciated as it is becoming rather annoying to listen to heavy background activity without being able to identify what is happening.
Thanks in advance
Les

Hi, Was looking through the forum because of a similar issue that occured twice yesterday. I was cleaning up and consolidating my externally connected disks (too many backups) 1 x USB connected, a NAS store and my Airport time capsule. After a long session of deleting files I got the spinning globe on the finder window, I could not access other apps to look at what was going on, but I could here the Time Capsule rattling away. Left it for 20 mins still the same, so had to crash the system to recover (hold power button in). Four hours later and more tidying up, went to shut down and again heard the Time capsule rattling away but this time I got to the white screen and the spinning circle. Twenty minutes later still not shutdown so another crash of the system.
I am not sure whether this problem is the same as you have described but there are similarities hence I thought I would post.
Hope we can find a resolution
Apologies need to update my profile, have iMac 27inch with 10.8.2
Jim

Is it heavy ?

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