Got some memory - good or bad???

This question relates to this old archived thread:
http://discussions.apple.com/thread.jspa?messageID=2211512&#2211512
In System Profiler, my brand new ( >_> ) 512Mb PC133 RAM chip reads it as PC 100-322S... which is no big deal, but with the hardware test CD as described in the thread above (being more accurate), it says something like "PC-unknown 512 Mb". This gives me the willies a little bit.
I've read that my Quicksilver G4/733 will only take PC133 chips, so I know it's not otherwise... but with the "unknown" readout in Hardware Test, is it something I should worry about and return, or is everything hunky-dory - nothing to worry about ??? The chip works in the tower, though...
I bought this ram chip from SMS Memory Module Assembly, Inc. Thank you in advance for the advice ^^ !
-Eric

In System Profiler, my brand new ( >_> ) 512Mb PC133
RAM chip reads it as PC 100-322S... which is no big
deal, but with the hardware test CD as described in
the thread above (being more accurate), it says
something like "PC-unknown 512 Mb". This gives me
the willies a little bit.
There may be an "Unknown" but there should also be some manufacturer's name.
I've read that my Quicksilver G4/733 will only take
PC133 chips, so I know it's not otherwise... but with
the "unknown" readout in Hardware Test, is it
something I should worry about and return, or is
everything hunky-dory - nothing to worry about ???
The chip works in the tower, though...
You can tell the chip speed from the Hardware Test profile. A 100MHz bus has a 10ns cycle. A 133MHz bus will be 7.5ns. If the Hardware Test Profile lists timing for 7.5ns, then the memory is designed for a 133MHz. bus It may also have 10ns timing listed if is designed to work in both 100MHz and 133MHz busses. You will get maximum memory speed if all the memory chips are CL2 (222) at 7.5ns, but standard PC133 memory is only CL3 (322) at 7.5ns.
Make sure the memory passes the Extended Tests. If you want a more thorough test, use Control-L to make the tests loop, so you can let it run overnight.

Similar Messages

I think I've got a memory leak and could use some advice

We've got ourselves a sick server/application and I'd like to gather a little community advice if I may. I believe the evidence supports a memory leak in my application somewhere and would love to hear a second opinion and/or suggestions.
The issue has been that used memory (as seen by FusionReactor) will climb up to about 90%+ and then the service will start to queue requests and eventually stop processing them all together. A service restart will bring everything back up again and it could run for 2 days or 2 hours before the issue repeats itself. Due to the inconsistant up time, I can't be sure that it's not some trouble bit of code that runs only occasionally or if it's something that's a core part of the application. My current plan is to review the heap graph on the "sick" server and look for sudden jumps in memory usage then review the IIS logs for requests at those times to try and establish a pattern. If anyone has some better suggestions though, I'm all ears! The following are some facts about this situation that may be usefull.
The "sick" server:
- CF 9.0.1.274733 Standard
- FusionReactor 4.0.9
- Win2k8 Web R2 (IIS7.5)
- Dual Xeon 2.8GHz CPUs
- 4GB RAM
JVM Config (same on "sick" and "good" servers):
- Initial and Max heap: 1536
-server -Xss10m -Dsun.io.useCanonCaches=false -XX:PermSize=192m -XX:MaxPermSize=256m -XX:+UseParNewGC -Xincgc -Xbatch -Dcoldfusion.rootDir={application.home}/../ -Dcoldfusion.libPath={application.home}/../lib -Dcoldfusion.dotnet.disableautoconversion=true
What I believe a "healthy" server graph should look like (from "good" server):
And the "sick" server graph looks like this:

@AmericanWebDesign, I would concur with BKBK (in his subsequent reply) that a more reasonable explanation for what you’re seeing (in the growth of heap) is something using and holding memory, which is not unusual for the shared variables scopes: session, application, and/or server. And the most common is sessions.
If that’s enough to get you going, great. But I suspect most people need a little more info. If this matter were easy and straightforward, it could be solved in a tweet, but it’s not, so it can’t.
Following are some more thoughts, addressing some of your concerns and hopefully pointing you in some new directions to find resolution. (I help people do it all the time, so the good news is that it can be done, and answers are out there for you.)
Tracking Session Counts
First, as for the observation we’re making about the potential impact of sessions, you may be inclined to say “but I don’t put that much in the session scope”. The real question to start with, though, is “how many sessions do you have”, especially when memory use is high like that (which may be different than how many you have right now). I’ve helped many people solve such problems when we found they had tens or hundreds of thousands of sessions. How can you tell?
a) Well, if you were on CF Enterprise, you could look at the Server Monitor. But since you’re not, you have a couple of choices.
b) First, any CF shop could use a free tool called ServerStats, from Mark Lynch, which uses the undocumented servicefactory objects in CF to report a count of sessions, overall and per application, within an instance. Get it here: http://www.learnosity.com/techblog/index.cfm/2006/11/9/Hacking-CFMX--pulling-it-all-togeth er-serverStats . You just drop the files (within the zip) into a web-accessible directory and run the one CFM page to get the answer instantly.
c) Since you mention using FusionReactor 4.0.9, here’s another option: those using FR 4 (or 4.5, a free update for you since you’re on FR 4) can use its available (but separately installed) FusionReactor Extensions for CF, a free plugin (for FR, at http://www.fusion-reactor.com/fr/plugins/frec.cfm). It causes FR to grab that session count (among many other really useful things about CF) to log it every 5 seconds, which can be amazingly helpful. And yes, FREC can grab that info whether one is on CF Standard or Enterprise.
And let’s say you find you do have tens of thousands of sessions (or more). You may wonder, “how does that happen?“ The most common explanation is spiders and bots hitting your site (from legit or unexpected search engines and others). Some of these visit your site perhaps daily to gather up the content of all the pages of your site, crawling through every page. Each such page hit will create a new session. For more on why and how (and some mitigation), see:
http://www.carehart.org/blog/client/index.cfm/2006/10/4/bots_and_spiders_and_poor_CF_perfo rmance
About “high memory”
All that said, I’d not necessarily conclude so readily that your “bad” memory graph is “bad”. It could just be “different”.
Indeed, you say you plan to “look for sudden jumps in memory usage“, but if you look at your “bad” graph, it simply builds very slowly. I’d think this supports the notion that BKBK and I are asserting: that this is not some one request that “goes crazy” and uses lots of memory, but instead is the “death by a thousand cuts” as memory use builds slowly. Even then, I’d not jump at a concern that “memory was high”.
What really matters, when memory is “high” is whether you (or the JVM) can do a GC (garbage collection) to recover some (or perhaps much) of that “high, used memory”. Because it’s possible that while it “was” in use in the past (as the graph shows), it might no longer be “in use” at the moment .
Since you have FR, you can use its “System Metrics page” to do a GC, using the trash can in the top left corner of the top right-most memory graph. (Those with the CFSM can do a GC on its “Memory Usage Summary” page, and SeeFusion users can do it on its front page.)
If you do a GC, and memory drops q lot, then you had memory that “had been” but no longer ”still was” in use, and so the high memory shown was not a problem. And the JVM can sometimes be lazy (because it’s busy) about getting to doing a GC, so this is not that unusual. (That said, I see you have added the Xincgc arg to your JVM. Do you realize that tells the JVM not to do incremental GCs? Do you really want that? I understand that people trade jvm args like baseball cards, trying to solve problems for each other, but I’d argue that’s not the place to start. In fact, rarely do I find myself that any new JVM args are needed to solve most problems.)
(Speaking of which, why did you set the – xss value? And do you know if you were raising or lowering it form the default?)
Are you really getting “outofmemory” errors?
But certainly, if you do hit a problem where (as you say) you find requests hanging, etc., then you will want to get to the bottom of that. And if indeed you are getting “outofmemory” problems, you need to solve those. To confirm if that’s the case, you’ll really want to look at the CF logs (specifically the console or “out” logs). For more on finding those logs, as well as a general discussion of memory issues (understanding/resolving them), see:
http://www.carehart.org/blog/client/index.cfm/2010/11/3/when_memory_problems_arent_what_th ey_seem_part_1
This is the first of a planned series of blog entries (which I’ve not yet finished) on memory issues which you may find additionally helpful.
But I’ll note that you could have other explanations for “hanging requests” which may not necessarily be related to memory.
Are you really getting “queued” requests?
You also say that “the service will start to queue requests and eventually stop processing them all together”. I’m curious: do you really mean “queuing”, in the sense of watching something in CF that tells you that? You can find a count of queued requests, with tools like CFSTAT, jrun metrics, the CF Server Monitor, or again FREC. Are you seeing one of those? Or do you just mean that you find that requests no longer run?
I address matters related to requests hanging and some ways to address them in another entries:
http://www.carehart.org/blog/client/index.cfm/2010/10/15/Lies_damned_lies_and_CF_timeouts
http://www.carehart.org/blog/client/index.cfm/2009/6/24/easier_thread_dumps
Other server differences
You presented us a discussion of two servers, but you’ve left us in the dark on potential differences between them. First, you showed the specs for the “sick” server, but not the “good” one. Should we assume perhaps you mean that they are identical, like you said the JVM.config is?
Also, is there any difference in the pattern of traffic (and/or the sites themselves) on the two servers? If they differ, then that could be where the explanation lies. Perhaps the sites on one are more inclined to be visited often by search engine spiders and bots (if they sites are more popular or just have become well known to search engines). There are still other potential differences that could explain things, but these are all enough to hopefully get you started.
I do hope that this is helpful. I know it’s a lot to take in. Again, if it was easier to understand and explain, there wouldn’t be so much confusion. I do realize that many don’t like to read long emails (let alone write them), which only exacerbates the problem. Since all I do each day is help people resolve such problems (as an independent consultant, more at carehart.org/consulting), I like to share this info when I can (and when I have time to elaborate like this), especially when I think it may help someone facing these (very common) challenges.
Let us know if it helps or raises more questions. :-)
/charlie

I got my battery replace today and must know is the battery health good or bad!

I got my battery replace today and must know is the battery health good or bad!
Here are the datails direct from the ibackupbot Programm
Battery
CycleCount: 231
DesignCapacity: 1420
FullChargeCapacity: 1258
Status: Success
BatteryCurrentCapacity: 78
BatteryIsCharging: false
ExternalChargeCapable: false
ExternalConnected: false
FullyCharged: false
GasGaugeCapability: true
My Phone info
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iOS 7.1.2
Please I really have to know it!
Thanks in advance!

sorry but I get my battery replaced by another local Service store called "http://handy-doktor.info"!
So accourding your answer is my battery not a new one, right??
Thanks in advance!

Placing a PDF file in an InDesign Doc and PDF again for a vendor- Good or Bad?

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Is it good or bad to place a PDF (general Press Quality) into an InDesign document and then creating a new PDF file with print vendor settings from that document?
My thought is that you in some cases are double compressing, lower dpi images getting compressed, RGB color mode images okay on layout but now are converted to CMYK and shift in the PDF.
Are there other issues and if so what are they.
Also is there an easy way to check ppi, color mode and compression of an acrobat PDF? I mean other than doing a preflight and searching into each image folder twenty levels deep. FlightCheck and Enfocus are not options,
too many vendors and not enough time.
Thank you all in advance for your words of wisdom.

Dov, I just got off the phone with a trusted professional in the Prepress field at a quite reputable print house, and he said "Dov is the guru of PDFs, ask him this...Will the InDesign CS3 preflight see the characteristics of a PDF (color mode, dpi(ppi), compression) if the original placed PDF is created as a pdf .X4 (1.7)? Ask him also if you were to use one form of compression (say lossless) in the original PDF, and then another form(say lossy) in the vendor PDF would it hold both or convert the first PDF compression to the second form?"
Any other responses are also welcomed.

I was trying to free up some memory on my hard drive and now I don't have an Itunes icon. I may have deleted it from my applications. How do I get it back. I downloaded it but it says it was moved from my PDF, music is played on Quicktime player

I was trying to free up some memory from my startup disk and I may have accidently deleted the Itunes application. I still have a library if I go through finder. I can download Itunes but I'm not able to install it. All this and I still don't have enough space on my startup disk, but that's another whole question!
If I play a tune,it comes through quicktime player. What can I do?

Enchanted1 wrote:
All this and I still don't have enough space on my startup disk, but that's another whole question!
No, this should be the number one thing you are concerned about.
Until you get this sorted, there is a good chance you may simply lose everything.
Do you hav ean external drive?
If so copy the entire /Music/iTunes/ folder to the external drive.
Then you can delete /Music/iTunes/ empty the trash and recover this space.
Do this then Apple menu > Software update.
Restart the computer
Then post back.

I want to check all functions of PCI 6534.I have read the user manual..I have some memory related questions.Please help me for that.

I want to check all functions of PCI 6534.I have read the user manual..I have some memory related questions.Please help me for that.
1.)If i am using the continuous output mode.and the size of generated data is less than 32 MB.If i want to preload the memory,what should i do?I want that first of all i load all my data to onboard memory & then i want to make start the transfer between 6534 & peripheral.Is it possible?As per me it should be.Plz tell me how should i do this?I think that in normal procedure the transfer between 6534-peripheral & outputting data from pc buffer to onboard memory works parallely.But i don't want this.Is it poss
ible?
(2).Similarly in finite input operation(pattern I/O) is it possible to preload the memory and then i read it?Because i think that the PC memory will be loaded automatically when 6534 acquires the data and then when we use DIO read vi the pc buffer data will be transferred to application buffer.If this is true,i do not want this.Is it possible?
(3) One more question is there if i am using normal operation onboard memory will be used bydefault right?Now if i want to use DMA and if i have data of 512 bytes to acquire.How will it work and how should i do it?Please tell me the sequence of operations.As per my knowledge in normal DMA operation we have 32 Bytes FIFO is there so after acquisition of 32 bytes only i can read it.How it will known to me that 32 bytes acquisition is complete?Next,If i want to acquire each byte separately using DMA interrupts what should i do?Provide me the name of sourse from which i can get details about onboard memory & DMA process of 6534 specifically
(4).In 6534 pattern Input mode,if i want to but only 10 bits of data.and i don't want to waste any data line what should i do?

Hi Vishal,
I'll try to answer your questions as best I can.
1) It is definitely possible to preload data to the 32MB memory (per group) and start the acquisition after you have preloaded the memory. There are example programs on ni.com/support under Example Code for pattern generation and the 6534 that demonstrate which functions to use for this. Also, if your PC memory buffer is less than 32MB, it will automatically be loaded to the card. If you are in continuous mode however, you can choose to loop using the on-board memory or you can constantly be reading the PC memory buffer as you update it with your application environment.
2) Yes, your data will automatically be loaded into the card's onboard memory. It will however be transferred as quickly as possible to the DMA FIFO on the card and then transferred to the PC memory buffer through DMA. It is not going to wait until the whole onboard memory is filled before it transfers. It will transfer throughout the acquisition process.
3) Vishal, searching the example programs will give you many of the details of programming this type of application. I don't know you application software so I can't give you the exact functions but it is easiest to look at the examples on the net (or the shipping examples with your software). Now if you are acquiring 512 bytes of data, you will start to fill your onboard memory and at the same time, data will be sent to the DMA FIFO. When the FIFO is ready to send data to the PC memory buffer, it will (the exact algorithm is dependent on many things regarding how large the DMA packet is etc.).
4) If I understand you correctly, you want to know if you waste the other 6 bits if you only need to acquire on 10 lines. The answer to this is Yes. Although you are only acquiring 10 bits, it is acquired as a complete word (16bits) and packed and sent using DMA. You application software (NI-DAQ driver) will filter out the last 6 bits of non-data.
Hope that answers your questions. Once again, the example code on the NI site is a great place to start this type of project. Have a good day.
Ron

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In regards to keeping your Mac happy... have a look at these Links...
http://support.apple.com/kb/HT1147
http://www.thexlab.com/faqs/maintainingmacosx.html

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Of course you find only ISSUES when you search the forums for the GL2...who posts that they are having success? No one walks into a doctor's office and says, "My arms feel really good, and my lungs are clear." No, they go to the doctor's office saying "I am having trouble breathing, and I broke my arm."
If you search the forums, you see plenty of posts with people having issues with DVX cameras too. Especially the forum dedicated to that camera. True, Canon cameras are a bit more finicky, but they work fine. Some have issues, others do not.
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Hi guys...
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Mac OS X (10.4.6)
ibook g4 1.33 Mac OS X (10.4.6) Really want MBP

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He [or the "genius"] never had any reason to doubt the "integrity" of the "Migration Assistant". My friend thought that his MBP was defective - and the Apple "Genius" thought the same thing.
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Finally - he just decided to re-install the whole operating system [clean install] - and now everything is fine.
If I were you - I wouldn't trust the "Migration Assistant".
PM G5 1.8 SP REV A Mac OS X (10.4.2)

Hi.. I got some problem when i want to type something , letters are not displaying immediately , they are displaying after some seconds. can you help me out

Hi.. I got some problem when i want to type something , letters are not displaying immediately , they are displaying after some seconds. can you help me out

Hello:
I am not being critical, but you seem to want Safari to behave exactly like Chrome. Every software developer has a plan. Sometimes features in one product parallel other products - sometime not. There might be some things available that would help you. Do not hold your breath, however, for suggestions from people who use these forums. Most of us use (and like) Apple products. If you wish to make suggestions for future improvements, there is a feedback area on this web site that Apple employees read/review.
Candidly, your approach would be akin to suggesting that Apple emulate the "features" in Windows (heaven forbid).
I use Safari (and have for years). I use Firefox (not a bad product) as my alternate browser.
Sorry for what appears to be a pedantic lecture. However, I think most of us adapt to different products if we really want to use them.
Barry
Message was edited by: Barry Hemphill

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The performance should be exactely the same!
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If you have used your Mac then all the software installations can cause it to begin performing slower. At least here my Mac performs always a little better after a clean install.
You can re-install OSX just as much you like. This will not damage your system or something like that.
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I'm just trying to establish what's good or bad about internal domain naming. I've currently got server.office (when viewed internally) but server.externaldomain.co.uk when viewed externally. But now the time has come to upgrade the servers and it seems a good time to reevaluate the naming and ip status of stuff. My question is that should a network's server and computers have internal dns (ala .office) or external naming linked to internal ip's (computer01.external.co.uk - 10.0.0.2)? What's the advantages of both.
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Hello,
I just installed companion CD. my pc os is windows xp 2002In the step of Availabe Product Components
Oracle Database 10g Companion Products
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1. Apache Standalone
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I chose both to install, and the installtion was sucessful.
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Emily

Emily,
CAN YOU PLEASE STOP POSTING THE SAME QUESTION IN DIFFERENT THREADS AND READ THE ANSWERS THAT PEOPLE GIVE YOU?
Members of this forum really want to help you and are spending valuable time reading your posts and providing answers. If you keep moving the target, we'll never get to a solution and you'll continue to waste people's time.
You have created these threads on the same topic in the last 24 hours:
install companion CD, got some error
install companion CD, got some errors
does companion CD incldues the installation HTML DB2.0? please help answer.
Instell HTML DB 2.0 error: unable to open file "htmldbins.sql"
Please SLOW DOWN and READ. Read this thread:
does companion CD incldues the installation HTML DB2.0? please help answer.
And try the suggestions provided. Post your findings back to the SAME THREAD.
Good luck,
Sergio

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Question. Is your iPod still under the 1 year warranty? If so, you can send it in for service.
Check this out:
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Got some memory - good or bad???

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