How to boost Macbook performance

Hello,
Many thanks in advance for your help. I have a white Macbook purchased in October 2008. The spec is:
2.1GHz Intel Core 2 Duo
2 GB 667 MHz DDR2 SDRAM
120 Gig HD
It's been great so far, but later in the year I'm changing job and they use (horrors!) Wintel. I'd like to keep my Mac to use for the majority of the time, and then switch over to Windows when necessary but I'm worried about the potential slowdown. I'll be using Adobe Premiere Pro on Windows for occasional use, as well as other CS applications, but I'd like to switch back to the Mac whenever possible.
Might it be worth changing the hard drive and boosting the RAM to 4 gig? Is there anything else I should consider to squeeze every inch of juice out of my trusty white Macbook that I can't afford to update for another year or so?
Thanks again,
Jonathan.

The RAM and the hard drive upgrade are excellent ideas....with a 120Gb drive that I would expect to be at least half full by now a 320Gb would help....and doubling the RAM will make a difference also....
When I first bought my MacBook it came with 2Gb of RAM and a 160Gb hard drive....I also bought a new Hitachi 200Gb 7200 rpm drive and a 4Gb kit for the RAM...waited about a week (to see how the MacBook performed stock)....then installed the upgrades...well worth the investment...

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Does anyone know how to boost mac performance?

Hey,
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Thanks!

Please describe the problem in as much relevant detail as possible. The better your description, the better the chance of a solution.
For example, if the computer is slow, which specific actions are slow? Is it slow all the time, or only sometimes? Did you change anything else just before it started? Have you seen any alerts or error messages? Have you done anything to try to fix it? Most importantly, do you have a current backup of all data? If the answer to the last question is "no," back up now. Ask if you need guidance. Do nothing else until you have a backup.

How to Improve the Performance of SQL Server and/or the hardware it resides on?

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My laptop is a 3 year old i7 computer with 8GB of RAM. It's fine but one would no longer consider it a "speed demon" compared to what's available today. The query consistently took 30 - 33 seconds.
My client's server has an Intel Xeon 5670 Processor and 12GB of RAM. That seems like pretty good specs. However, the query consistently took between 120 - 135 seconds to complete ... about 4 times what my laptop did!
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How is the memory pressure (check PLE counter) and post results.
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"If there's nothing wrong with me, maybe there's something wrong with the universe!"

Is the 3.06 GHz iMac good enough for gaming? How good is the performance?

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I have a MBP right now as you can see in my signature; as it's four years old already, gaming-wise, it can't really play the latest games anymore. It's capable of playing Call of Duty 4: Modern Warfare (not the sequel) at the lowest graphics settings and only getting 30 FPS or so when there's little action, but that can easily drop to 15 FPS or less when there's stuff happening on the screen.
I don't play video games all that much (let's say five hours a week), but I'd at least like a computer that doesn't need to be replaced too soon, either, so I'm currently on the fence between these two models. I definitely don't want to go the next step and get a 27" iMac, though, since I already have a 21" monitor and so getting an extra 21" iMac would fit best with it, and I'm happy with the size as it is as I usually use my computer for programming and such.

Not even the top end card included in the 27" models is going to last 4 years, so you may as well rule out the iMac right now. You're going to want something a bit more user-friendly on the upgrade front. So, that limits you to the Mac Pro if you want to stay with Apple products. Otherwise, you're going to want to build your own PC so you can build in some modularity.

Trying boost the performance of RMAN on AIX5L

Hi all,
I need to find the best "number" for my test environment:
I'm looking for opinions based on knowledge of who has experience with RMAN.
I'm trying find better numbers of channels, maxopenfiles and additional parameters.
I accept the recommendation of changing the parameters of Operating System or Database
Environment Info:
DB: 10.2.0.5
ASM: 10.2.0.5
OS: AIX 5L
CPUs: 16
DISKGROUP: 1 (with 16 ASMDISK)
Adapter: 4 HBA (4GBIT)I want to find out what the maximum rate that can be achieved, then this test I will use only "BACKUP VALIDATE" When I get the best number i'll go to TSM the backup will be done via LAN-FREE.
Below the results of the tests using BACKUP VALIDATE:
=====================================================
1° Test
Database Parameter
backup_tape_io_slaves=TRUE
dbwr_io_slaves=0
db_writer_processes=6
tape_asynch_io= TRUE
disk_asynch_io= TRUE
RMAN Parameter
4 Channel
4 MAXOPENFILES for each Channel
TIME: 01:08:13
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RATE: 223MB/s
=====================================================
=====================================================
2° Test
Database Parameter
   backup_tape_io_slaves=TRUE
   dbwr_io_slaves=0
   db_writer_processes=6
   tape_asynch_io= TRUE
   disk_asynch_io= TRUE
RMAN Parameter
   4 Channel
   3 MAXOPENFILES for each Channel
TIME: 00:57:42
SIZE IN:892.11GB
RATE: 264MB/s
=====================================================
=====================================================
3° Test - Here my best number
Database Parameter
backup_tape_io_slaves=TRUE
dbwr_io_slaves=0
db_writer_processes=6
tape_asynch_io= TRUE
disk_asynch_io= TRUE
RMAN Parameter
4 Channel
2 MAXOPENFILES for each Channel
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SIZE IN:892.11GB
RATE: 287MB/s
=====================================================I ran other test with 2 Channels and 3 MAXOPENFILES and perfomance was like 3° Test - about 54 minutes
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My 1° test i can get 784 GB/hour
My 3° test i can get 1009 GB/hour
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What makes sense for this to be optimal number (8 MAXOPENFILES)?
Thanks,
Levi Pereira

Hi Dude,
Thanks for the input.
Dude wrote:
I think the difference could be memory and process related combined with hardware limitations. RMAN will read the datafiles from disk into memory. Doesn't parallelism introduce additional channels and each channel writes to a separate backupset? From what I understand, too many I/O channels can reduce overall performance and cause additional overhead in particular if the media or disk is the bottleneck. On the other hand, If the cpu was the bottleneck, more cpu or processes can boost performance. When processes run on different cpu's, caching is less effective. The same applies to your HBA adapter. I monitored the whole process of backup and saw that the issue was always associated with performance of I/O the RMAN not was waiting for the CPU and also had no waits on disks. I knew I could increase my throughput but I do not know how. (i.e Resources was left over but did not know how exploring them.)
>
As a rule, the number of channels used in carrying out an individual RMAN command should match the number of physical devices accessed in carrying out that command. Striped disk configurations involve hardware multiplexing, so that the level of RMAN multiplexing does not need to be as high and a smaller MAXOPENFILES setting can results in faster performance.
I can use up to 4 Drives (4 Channels) that are LTO-5 that may have an acceptable rate of 120MB/s, so I can go up to 480Mb/s I know it's not exact, there are several extra factors.
I wish be sure which was the highest rate I could get by using four channels.
It remains unknown (x =?) this math.
16 (asmdisk) + 2 (HBA) + 256 (Datafiles) its ok to use 4 Channel + 2 MAXOPENFILES + 12 DB_WRITE
If I knew the math to find the ideal number of channels and maxopenfiles would be my great discovery.
I guess you already checked the Tuning Backup and Recovery chapter of the Database Backup and Recovery Advanced User's Guide, which also shows that you can use the V$BACKUP_SYNC_IO and V$BACKUP_ASYNC_IO views to determine the source of backup or restore bottlenecks and to see detailed progress of backup jobs. http://download.oracle.com/docs/cd/B19306_01/backup.102/b14191/rcmtunin.htm#i1006195
I add more notes than I used:
RMAN Performance Tuning Using Buffer Memory Parameters [ID 1072545.1]
RMAN Performance Tuning Diagnostics [ID 311068.1]
Advise On How To Improve Rman Performance [ID 579158.1]
Using V$BACKUP_ASYNC_IO / V$BACKUP_SYNC_IO to Monitor RMAN Performance [ID 237083.1]
http://levipereira.wordpress.com/2010/11/20/tuning-oracle-rman-jobs/
I tried one more change:
On large workloads, the database writer may become a bottleneck. If it does, then increase the value of DB_WRITER_PROCESSES. As a general rule, do not increase the number of database writer processes above one for each pair of CPUs in the system or partition.
http://download.oracle.com/docs/cd/B28359_01/server.111/b32009/appa_aix.htm#BEHGGBAJ
I changed DB_WRITE_PROCESSES from 6 to 12.
My last RATE: 305MB/s.
Cheers,
Levi Pereira

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Mail has 16k messages, and performance is very slow, with loading times taking up to 5 seconds every time I open Mail.
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Graham

One possible solution would be to organise your inbox into folders.
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How to connect macbook pro to panasonic tv with hdmi cable

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Hi m,
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http://support.apple.com/kb/HT4241
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how to connect macbook pro to tv

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Aravind

Hi Otto,
The form is created using HCM forms and processes. I' am performing user events in the form.
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the result is appearing on the form. Around 8 or 9th one, the wait symbol appears and the form is not
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I was reading ways to improve performance during re-rendering given below.
http://www.adobe.com/devnet/livecycle/articles/DynamicInteractiveFormPerformance.pdf
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Help on how to fix macbook pro 13inch 2010 (cpu 1 caller 0x47f5ad)?

help on how to fix macbook pro 13inch 2010
Hi, I need some peoples help on fixing my laptop. I have a macbook pro 13 inch 2010 model, and it refuses to boot into either osx or windows. Every time I prevoiusly treid to boot into mac osx I got this error "panic (cpu 1 caller 0x47f5ad)". there is an image below. and when I had treid to boot into windows (bootcamp) I got this error "A disk read error occured Press Ctrl+Alt+Del to restart". I have treid to restart the computer and gotten both these errors agian. The strange things is this deosn't always happen, sometimes I don't get any errors, and it just has the apple logo whith the spinning loading thing happening below (I left this for an hour and it still kept spinning, and never loaded). Other times it just show white whith no errors but never loads, sometime it lets me alt to select which os to boot into (nether work), but other times it just freezes and shows a mouse cursor on the white background. it's not consistent.
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also one last thing, I stupitidely inserted my mac osx disc 95% of the way into my macs slot loading drive when it was powered down (off). when I turned it on it sucked it in fine, but would that have caused any damage to the disc or laptop (I cannot eject the disc to check)
I have images of many of the things I described below. So any suggestions.
I have also posted this on several other websiets if that helps)
Photos
http://www.flickr.com/photos/100089102@N08/
"panic (cpu 1 caller 0x47f5ad)" error issues
http://forums.macrumors.com/showthread.php?t=1177233
http://reviews.cnet.com/8301-13727_7-10344626-263.html?tag=mfiredir
https://discussions.apple.com/thread/3256029?start=0&tstart=0
http://www.mac-forums.com/forums/switcher-hangout/258078-macbook-pro-will-not-st art-up.html
https://discussions.apple.com/thread/3965618?start=0&tstart=0
Hardrive issues
https://discussions.apple.com/thread/4225754?start=0&tstart=0
http://www.mac-forums.com/forums/other-hardware-peripherals/242064-hard-drive-no t-showing-up-disc-utility.html
How to read errors
http://developer.apple.com/library/mac/#technotes/tn2063/_index.html
other websites
http://au.answers.yahoo.com/question/index?qid=20130808212838AAYDeTk
http://forums.macrumors.com/showthread.php?p=17706929#post17706929

The problem may be that your macbook is'nt set to 'mirror image' if you go into settings, onto 'displays' there should be an option within, once youre connected, to 'mirror image' if you check this box, then the problem should be sorted, if not then maybe a dodgy cable or adapter.

How to measure the performance of sql query?

Hi Experts,
How to measure the performance, efficiency and cpu cost of a sql query?
What are all the measures available for an sql query?
How to identify i am writing optimal query?
I am using Oracle 9i...
It ll be useful for me to write efficient query....
Thanks & Regards

psram wrote:
Hi Experts,
How to measure the performance, efficiency and cpu cost of a sql query?
What are all the measures available for an sql query?
How to identify i am writing optimal query?
I am using Oracle 9i... You might want to start with a feature of SQL*Plus: The AUTOTRACE (TRACEONLY) option which executes your statement, fetches all records (if there is something to fetch) and shows you some basic statistics information, which include the number of logical I/Os performed, number of sorts etc.
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alter session set statistics_level=all;
alter session set timed_statistics = true;
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FROM     V$SQL_PLAN_STATISTICS_ALL P,
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                           AND SQL_TEXT NOT LIKE '%V$SQL%'
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WHERE    S.HASH_VALUE = P.HASH_VALUE
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Note that "statistics_level=all" adds a significant overhead to the processing, so use with care and only when required:
http://jonathanlewis.wordpress.com/2007/11/25/gather_plan_statistics/
http://jonathanlewis.wordpress.com/2007/04/26/heisenberg/
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/

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I just took this example from SAP Help
=======================================
Syntax in a form window:
/: PERFORM <form> IN PROGRAM <prog>
/: USING &INVAR1&
/: USING &INVAR2&
/: CHANGING &OUTVAR1&
/: CHANGING &OUTVAR2&
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Hi,
I am working on a distributed application with Azure Storage Queue for message queuing. queue will be used by multiple clients across the clock and thus it is expected that it would be heavily loaded most on the time in usage. business case is typical as in
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Now, coming to the problem statement. since it is envisaged that the queue would be heavily loaded most of the time, I am pushing towards to speed up processing of the overall message lifetime. the faster I can clear messages, the better overall experience
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To improve on performance I did multiple cycles for performance profiling and then improving on the identified "HOT" path/function.
It all came down to a point where only the Azure Queue pull and delete are the only two most time consuming calls outside. I can further improve on pull, which i did by batch pulling 32 message at a time (which is the max message count i can pull from Azure
queue at once at the time of writing this question.), this returned me a favor as in by reducing processing time to a big margin. all good till this as well.
i am processing these messages in parallel so as to improve on overall performance.
pseudo code:
//AzureQueue Class is encapsulating calls to Azure Storage Queue.
//assume nothing fancy inside, vanila calls to queue for pull/push/delete
var batchMessages = AzureQueue.Pull(32); Parallel.ForEach(batchMessages, bMessage =>
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catch()
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with the implementation mentioned here, i get speed of close to 25 messages/sec. Right now Azure queue delete calls are choking application performance. so is there any hope to push it further.
Does it also makes difference in performance which queue delete call am making? as of now queue has overloaded method for deleting message, one which except message object and another which accepts message identifier and pop receipt. i am using the later
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Let me know if you need any additional information or any clarification in question.
Inputs/suggestions are welcome.
Many thanks.

The first thing that came to mind was to use a parallel delete at the same time you run the work in DoSomething. If DoSomething fails, add the message back into the queue. This won't work for every application, and work that was in the queue
near the head could be pushed back to the tail, so you'd have to think about how that may effect your workload.
Or, make a threadpool queued delete after the work was successful. Fire and forget. However, if you're loading the processing at 25/sec, and 90% of time sits on the delete, you'd quickly accumulate delete calls for the threadpool until you'd
never catch up. At 70-80% duty cycle this may work, but the closer you get to always being busy could make this dangerous.
I wonder if calling the delete REST API yourself may offer any improvements. If you find the delete sets up a TCP connection each time, this may be all you need. Try to keep the connection open, or see if the REST API can delete more at a time
than the SDK API can.
Or, if you have the funds, just have more VM instances doing the work in parallel, so the first machine handles 25/sec, the second at 25/sec also - and you just live with the slow delete. If that's still not good enough, add more instances.
Darin R.

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