Re: Use of Swap Space
On 02/03/2009 05:01 AM, Avi Greenbury wrote: Ron Johnson wrote: On 02/01/2009 10:04 AM, Mirko Scurk wrote: [snip] Could it be that 32-bit Debian can't access rest of memory? That would only be an issue if he could only see (I think) 2GB of his 4GB RAM. Really? The only system on which I've 3Gb of ram and a 32bit OS is my Windows laptop, and that reports 3.5Gb of the ~4Gb that's in there. I've no idea how to get a less-rounded number for it out of Windows. That's a design issue (I think) specific to Windows. Has to do with the decision to map video card RAM into regular address space (even on machines with discreet video cards). -- Ron Johnson, Jr. Jefferson LA USA I am not surprised, for we live long and are celebrated poopers. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On Tue, Feb 3, 2009 at 12:13 PM, Ron Johnson ron.l.john...@cox.net wrote: On 02/03/2009 05:01 AM, Avi Greenbury wrote: Ron Johnson wrote: On 02/01/2009 10:04 AM, Mirko Scurk wrote: [snip] Could it be that 32-bit Debian can't access rest of memory? That would only be an issue if he could only see (I think) 2GB of his 4GB RAM. Really? The only system on which I've 3Gb of ram and a 32bit OS is my Windows laptop, and that reports 3.5Gb of the ~4Gb that's in there. I've no idea how to get a less-rounded number for it out of Windows. That's a design issue (I think) specific to Windows. Has to do with the decision to map video card RAM into regular address space (even on machines with discreet video cards). You should be able to avoid this problem by enabling PAE - search Google and there'a a lot of information about this, but a lot of it sadly is either inconsistent or just clearly wrong (it's my experience that that's the case for most responses to questions relating to Windows, but then maybe that's just my prejudice showing). Try looking at http://blogs.msdn.com/oldnewthing/archive/2006/08/14/699521.aspx and searching Raymond Chen's blog for more recent posts on the topic. Apologies for pushing this thread further OT. Nye -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
Ron Johnson wrote: On 02/01/2009 10:04 AM, Mirko Scurk wrote: [snip] Could it be that 32-bit Debian can't access rest of memory? That would only be an issue if he could only see (I think) 2GB of his 4GB RAM. Really? The only system on which I've 3Gb of ram and a 32bit OS is my Windows laptop, and that reports 3.5Gb of the ~4Gb that's in there. I've no idea how to get a less-rounded number for it out of Windows. -- Avi Greenbury http://aviswebsite.co.uk ;) http://aviswebsite.co.uk/asking-questions -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On Tue, 03 Feb 2009, Aneurin Price wrote: On Tue, Feb 3, 2009 at 12:13 PM, Ron Johnson ron.l.john...@cox.net wrote: On 02/03/2009 05:01 AM, Avi Greenbury wrote: That's a design issue (I think) specific to Windows. Has to do with the decision to map video card RAM into regular address space (even on machines with discreet video cards). This situation is true for most any OS. Linux (for example) can work around it fairly well by properly implementing PAE to extend the address space. Windows doesn't work so well with PAE (thanks to the joy of closed source drivers). You should be able to avoid this problem by enabling PAE - search Google and there'a a lot of information about this, but a lot of it sadly is either inconsistent or just clearly wrong (it's my experience that that's the case for most responses to questions relating to Windows, but then maybe that's just my prejudice showing). Try looking at http://blogs.msdn.com/oldnewthing/archive/2006/08/14/699521.aspx and searching Raymond Chen's blog for more recent posts on the topic. PAE (usually) doesn't work well under Windows unless all the drivers are 64-bit aware. Apparently WinXP sp2 just silently ignores the /PAE flag (at least as far as memory addressing is concerned). Dan's Data has a good summary of the 3GB+ issues with 32 bit windows here: http://www.dansdata.com/askdan00015.htm Apologies for pushing this thread further OT. Likewise. -- Brad -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On Fri, Jan 30, 2009 at 10:04:19PM -0600, Ron Johnson wrote: On 01/30/2009 09:54 PM, Douglas A. Tutty wrote: On Sat, Jan 31, 2009 at 02:52:34AM +, Tzafrir Cohen wrote: On Sat, Jan 31, 2009 at 12:54:34AM +, Dean Chester wrote: If a 100% CPU usage causes your computer to *over*heat (which is something you did not write above) you'll have a problem elsewhere (e.g. a dist-upgrade that includes tex-live :-) ) Or, is the board firmware slowing down the CPU to allow it to cool, which makes a basically idling debian system to use a higher percentage of available CPU (less idle time). Remember, its a percentage of CPU capacity. If the CPU slows down, the the available capacity decreases. But 100% CPU usage isn't the same as running at 100% of rated clock speed. Is *that* what you are really referring to? To illustrate what I mean, lets change from percentage to some ficticuous numbers. Lets say that the CPU when cool can make 100 BIGMACS per second. When the CPU is cool, top shows that it is 99% idle (1% CPU usage), so it takes 1 BIGMACS per second to keep the system and top running. Now, heat up the CPU too far and the BIOS slows down the CPU to make it run cooler. Now the CPU can only make 1 BIGMACS per second. It still takes 1 BIGMACS per second to keep the system and top running, so now top will show that the CPU is 0% idle (100% CPU usage). This is what I was suggesting. Doug. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
Try to run `free' to get a more detailed break up (or even cat /proc/meminfo). Running free -g on my system returns 3. I have 4. Running cat /proc/meminfo returns 4030668KB, which is 3.84GB according to onlineconversion, closer. Does RAM also have a sort of FAT? No, it's just that some part of your RAM is used up for other things. E.g. it may be used by your video card (if it doesn't have its own VRAM), or by the kernel. It seems as though free won't return the accurate size. The opposite: it returns the actual usable size (of course -g makes it round *down* to the nearest gigabyte, so you get a gross under-approximation, but that's what you asked for). Stefan -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On 02/02/2009 11:34 AM, Douglas A. Tutty wrote: On Fri, Jan 30, 2009 at 10:04:19PM -0600, Ron Johnson wrote: On 01/30/2009 09:54 PM, Douglas A. Tutty wrote: On Sat, Jan 31, 2009 at 02:52:34AM +, Tzafrir Cohen wrote: On Sat, Jan 31, 2009 at 12:54:34AM +, Dean Chester wrote: If a 100% CPU usage causes your computer to *over*heat (which is something you did not write above) you'll have a problem elsewhere (e.g. a dist-upgrade that includes tex-live :-) ) Or, is the board firmware slowing down the CPU to allow it to cool, which makes a basically idling debian system to use a higher percentage of available CPU (less idle time). Remember, its a percentage of CPU capacity. If the CPU slows down, the the available capacity decreases. But 100% CPU usage isn't the same as running at 100% of rated clock speed. Is *that* what you are really referring to? To illustrate what I mean, lets change from percentage to some ficticuous numbers. Lets say that the CPU when cool can make 100 BIGMACS per second. When the CPU is cool, top shows that it is 99% idle (1% CPU usage), so it takes 1 BIGMACS per second to keep the system and top running. Now, heat up the CPU too far and the BIOS slows down the CPU to make it run cooler. Now the CPU can only make 1 BIGMACS per second. It still takes 1 BIGMACS per second to keep the system and top running, so now top will show that the CPU is 0% idle (100% CPU usage). This is what I was suggesting. No need for analogies. $ cat /proc/cpuinfo | grep 'cpu MHz' cpu MHz : 1000.000 cpu MHz : 1000.000 [Do something CPU-intensive.] $ cat /proc/cpuinfo | grep 'cpu MHz' cpu MHz : 2100.000 cpu MHz : 2100.000 Again, I ask if you are referring to clock speed or CPU usage? -- Ron Johnson, Jr. Jefferson LA USA I am not surprised, for we live long and are celebrated poopers. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
Ron Johnson wrote: On 01/31/2009 03:27 PM, Nuno MagalhĂŁes wrote: Try to run `free' to get a more detailed break up (or even cat /proc/meminfo). Running free -g on my system returns 3. I have 4. Running cat /proc/meminfo returns 4030668KB, which is 3.84GB according That's 4030668*1024 = 4,127,404,032. to onlineconversion, closer. Does RAM also have a sort of FAT? 4GB = 4,294,967,296. So, where's the missing 167,563,264 bytes? (I.e. 40,909 4KB pages.) It seems as though free won't return the accurate size. Of course it does. We, though, aren't kernel hackers or h/w gurus, so are left in the dark. -- Ron Johnson, Jr. Jefferson LA USA Could it be that 32-bit Debian can't access rest of memory? -- Mirko Scurk -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On 02/01/2009 10:04 AM, Mirko Scurk wrote: [snip] Could it be that 32-bit Debian can't access rest of memory? That would only be an issue if he could only see (I think) 2GB of his 4GB RAM. -- Ron Johnson, Jr. Jefferson LA USA I am not surprised, for we live long and are celebrated poopers. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On Saturday 31 January 2009 21:01:14 David Fox wrote: It isn't that RAM has a FAT - those things only are present on filesystems. It is more likely that free's interpretation doesn't include kernel memory. Also, 4gb may be 4*1024*1024 not 4*1000*1000, although that is more likely to be a concern with hard disk capacity. No, the issue is that manufactures advertise in *1000, while computers use bytes in *1024. The recent convention that's come into place to represent this is between Kilo/Mega/Giga-bytes (*1000) and Kibi/Mebi/Gibi-bytes (*1024). So a stick of memory advertised as 4 Gigabytes is going to present itself to your computer as 3.84 Gibibytes, roughly. http://xkcd.com/394/ Lee -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
So a stick of memory advertised as 4 Gigabytes is going to present itself to your computer as 3.84 Gibibytes, roughly. Er... what's the standard in Debian? 1024, right? We're still being logical here, right? -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On Sunday 01 February 2009 17:04:38 Nuno Magalhães wrote: So a stick of memory advertised as 4 Gigabytes is going to present itself to your computer as 3.84 Gibibytes, roughly. Er... what's the standard in Debian? 1024, right? We're still being logical here, right? Sorry, it's more like 3.72 Gibibytes. Anyway, it has nothing to do with Debian. It has to do with the fact that computers are binary, and memory manufacturers advertise their products by measuring in multiples of 10. Some might say that practice is dishonest, but it is also universal at this point. And the Kibibyte/Mebibyte/Gibibyte nomenclature was introduced by the IEEE like 10 years ago, so people really should be familiar with it by now. :) signature.asc Description: This is a digitally signed message part.
Re: Use of Swap Space
On 02/01/2009 02:49 PM, Lee Glidewell wrote: On Saturday 31 January 2009 21:01:14 David Fox wrote: It isn't that RAM has a FAT - those things only are present on filesystems. It is more likely that free's interpretation doesn't include kernel memory. Also, 4gb may be 4*1024*1024 not 4*1000*1000, although that is more likely to be a concern with hard disk capacity. No, the issue is that manufactures advertise in *1000, while computers use Hard drive manufacturers, not RAM manufacturers. My beard's grey enough to remember when drive manufacturers measured drive capacity in binary KB, not decimal. bytes in *1024. The recent convention that's come into place to represent this is between Kilo/Mega/Giga-bytes (*1000) and Kibi/Mebi/Gibi-bytes (*1024). So a stick of memory advertised as 4 Gigabytes is going to present itself to your computer as 3.84 Gibibytes, roughly. If that were true, I'd have 8 * 10^9 bytes of RAM, and this demonstrates that error: $ calc 8 \* 10\*\*9 / 1024 7812500 $ cat /proc/meminfo | grep MemTot MemTotal:8177796 kB $ calc 8177796 \* 1024 8374063104 $ calc 2\*\*30 \* 8 8589934592 The only issue is that I'm missing 215871488 bytes (52703 of 4KB pages). http://xkcd.com/394/ But seriously: KB was always the standard way of writing kilobyte. Kb was/is kilobit (now, Mb and Gb are relevant), used my memory manufactures to indicate the capacity of individual *chips* (not the SIMMs on which they are mounted). -- Ron Johnson, Jr. Jefferson LA USA I am not surprised, for we live long and are celebrated poopers. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On Sunday 01 February 2009 17:59:07 Ron Johnson wrote: On 02/01/2009 02:49 PM, Lee Glidewell wrote: No, the issue is that manufactures advertise in *1000, while computers use Hard drive manufacturers, not RAM manufacturers. My beard's grey enough to remember when drive manufacturers measured drive capacity in binary KB, not decimal. bytes in *1024. The recent convention that's come into place to represent this is between Kilo/Mega/Giga-bytes (*1000) and Kibi/Mebi/Gibi-bytes (*1024). So a stick of memory advertised as 4 Gigabytes is going to present itself to your computer as 3.84 Gibibytes, roughly. If that were true, I'd have 8 * 10^9 bytes of RAM, and this demonstrates that error: snipped work Okay, I stand corrected. I guess I had assumed that RAM was sold this way as well, and hadn't bothered to do the math to check it. You know what they say about people who assume. ;) I'll go stand in the corner now. Lee -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On 02/01/2009 08:15 PM, Lee Glidewell wrote: [snip] You know what they say about people who assume. ;) I'll go stand in the corner now. With your nose pressed into the corner, touching that dust spot at eye level. -- Ron Johnson, Jr. Jefferson LA USA I am not surprised, for we live long and are celebrated poopers. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
Dean Chester: I recently noticed that my CPU is at 100% when the temperature of my CPU is high. The causality is the other way round: your CPU's temperature rises if the CPU is being used. That's totally expected. The question is whether the temperature is high enough to damage your CPU. J. -- If I was Mark Chapman I would have shot John Lennon with a water pistol. [Agree] [Disagree] http://www.slowlydownward.com/NODATA/data_enter2.html signature.asc Description: Digital signature
Re: Use of Swap Space
I recently noticed that my CPU is at 100% when the temperature of my CPU is high. Taking a look at System Monitor i have also discovered that my swap space is being used while only 13% of the RAM is, why isn't is using the rest of the RAM. Has anyone got any ideas why? Unless you really have an enormous amount of RAM (in which case you probably know what's going on), the tool that tells you 13% of RAM used is partly lying. It's probably telling you that 13% of the RAM is used by data that's not found anywhere else, while most of the rest of your RAM is probably used to store local copies of disk blocks. Try to run `free' to get a more detailed break up (or even cat /proc/meminfo). Stefan -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
Try to run `free' to get a more detailed break up (or even cat /proc/meminfo). Running free -g on my system returns 3. I have 4. Running cat /proc/meminfo returns 4030668KB, which is 3.84GB according to onlineconversion, closer. Does RAM also have a sort of FAT? It seems as though free won't return the accurate size. Nuno Magalhães -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On Fri, Jan 30, 2009 at 10:04:19PM -0600, Ron Johnson wrote: On 01/30/2009 09:54 PM, Douglas A. Tutty wrote: On Sat, Jan 31, 2009 at 02:52:34AM +, Tzafrir Cohen wrote: On Sat, Jan 31, 2009 at 12:54:34AM +, Dean Chester wrote: Hi I recently noticed that my CPU is at 100% when the temperature of my CPU is high. ... If a 100% CPU usage causes your computer to *over*heat (which is something you did not write above) you'll have a problem elsewhere (e.g. a dist-upgrade that includes tex-live :-) ) Or, is the board firmware slowing down the CPU to allow it to cool, which makes a basically idling debian system to use a higher percentage of available CPU (less idle time). ... But 100% CPU usage isn't the same as running at 100% of rated clock speed. ... regardless of which of the above is happening, if the thing is running hot, then get in there and clean out the fans and heat sinks there's nothing like trying to slow down a cpu to make it run cooler when the cooler isn't working... .02 A signature.asc Description: Digital signature
Re: Use of Swap Space
On 01/31/2009 06:00 PM, Andrew Sackville-West wrote: On Fri, Jan 30, 2009 at 10:04:19PM -0600, Ron Johnson wrote: On 01/30/2009 09:54 PM, Douglas A. Tutty wrote: On Sat, Jan 31, 2009 at 02:52:34AM +, Tzafrir Cohen wrote: On Sat, Jan 31, 2009 at 12:54:34AM +, Dean Chester wrote: Hi I recently noticed that my CPU is at 100% when the temperature of my CPU is high. ... If a 100% CPU usage causes your computer to *over*heat (which is something you did not write above) you'll have a problem elsewhere (e.g. a dist-upgrade that includes tex-live :-) ) Or, is the board firmware slowing down the CPU to allow it to cool, which makes a basically idling debian system to use a higher percentage of available CPU (less idle time). ... But 100% CPU usage isn't the same as running at 100% of rated clock speed. ... regardless of which of the above is happening, if the thing is running hot, then get in there and clean out the fans and heat sinks there's nothing like trying to slow down a cpu to make it run cooler when the cooler isn't working... I prop up the rear of the laptop. Now because of a docking station, before with a short section of 2x4 wood. Allows for better air flow, and less fan usage. -- Ron Johnson, Jr. Jefferson LA USA I am not surprised, for we live long and are celebrated poopers. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On 2009-01-31 02:52:34 +, Tzafrir Cohen wrote: On Sat, Jan 31, 2009 at 12:54:34AM +, Dean Chester wrote: I recently noticed that my CPU is at 100% when the temperature of my CPU is high. Taking a look at System Monitor i have also discovered that my swap space is being used while only 13% of the RAM is, why isn't is using the rest of the RAM. Has anyone got any ideas why? No. CPU utilization has nothing directly to do with swap usage. If the machine swaps a lot, the load average can get very high. For instance, on my PowerBook, just because I started a process that required much memory, the load average reached 25. I suppose the cause is that background processes that woke up were waiting for memory, and during this time they were regarded as running. -- Vincent Lefèvre vinc...@vinc17.org - Web: http://www.vinc17.org/ 100% accessible validated (X)HTML - Blog: http://www.vinc17.org/blog/ Work: CR INRIA - computer arithmetic / Arenaire project (LIP, ENS-Lyon) -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On Sat, Jan 31, 2009 at 1:27 PM, Nuno Magalhães nunomagalh...@eu.ipp.pt wrote: It seems as though free won't return the accurate size. I also have 4 gb of RAM (new Quadcore Intel) and 'free -g' reports '3' as well, I suspect this is underrounding to the extreme, and 'free -gb' returns a more realistic number: f...@newbox:~$ free -gb total used free sharedbuffers cached Mem:4018106368 3988586496 29519872 0 26746880 2479407104 -/+ buffers/cache: 1482432512 2535673856 Swap: 83897753605529600 8384245760 It isn't that RAM has a FAT - those things only are present on filesystems. It is more likely that free's interpretation doesn't include kernel memory. Also, 4gb may be 4*1024*1024 not 4*1000*1000, although that is more likely to be a concern with hard disk capacity. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On 01/31/2009 03:27 PM, Nuno Magalhães wrote: Try to run `free' to get a more detailed break up (or even cat /proc/meminfo). Running free -g on my system returns 3. I have 4. Running cat /proc/meminfo returns 4030668KB, which is 3.84GB according That's 4030668*1024 = 4,127,404,032. to onlineconversion, closer. Does RAM also have a sort of FAT? 4GB = 4,294,967,296. So, where's the missing 167,563,264 bytes? (I.e. 40,909 4KB pages.) It seems as though free won't return the accurate size. Of course it does. We, though, aren't kernel hackers or h/w gurus, so are left in the dark. -- Ron Johnson, Jr. Jefferson LA USA I am not surprised, for we live long and are celebrated poopers. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On 01/31/2009 11:01 PM, David Fox wrote: [snip] It isn't that RAM has a FAT - those things only are present on filesystems. It is more likely that free's interpretation doesn't include kernel memory. Also, 4gb may be 4*1024*1024 not 4*1000*1000, although that is more likely to be a concern with hard disk capacity. No, RAM is always measured in binary. -- Ron Johnson, Jr. Jefferson LA USA I am not surprised, for we live long and are celebrated poopers. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Use of Swap Space
Hi I recently noticed that my CPU is at 100% when the temperature of my CPU is high. Taking a look at System Monitor i have also discovered that my swap space is being used while only 13% of the RAM is, why isn't is using the rest of the RAM. Has anyone got any ideas why? Thanks in Advance Dean.
Re: Use of Swap Space
On 01/30/2009 06:54 PM, Dean Chester wrote: Hi I recently noticed that my CPU is at 100% when the temperature of my CPU is high. Taking a look at System Monitor i have also discovered that my swap space is being used How much? 2%, or 90%? while only 13% of the RAM is, why isn't is using the rest of the RAM. Has anyone got any ideas why? What does top(1) say? -- Ron Johnson, Jr. Jefferson LA USA I am not surprised, for we live long and are celebrated poopers. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On Friday 2009 January 30 18:54:34 Dean Chester wrote: I recently noticed that my CPU is at 100% when the temperature of my CPU is high. Taking a look at System Monitor i have also discovered that my swap space is being used while only 13% of the RAM is, why isn't is using the rest of the RAM. Has anyone got any ideas why? Thanks in Advance Dean. Once stuff gets swapped out, it may not get swapped in. (It will remain swapped out until it is accessed. Swapping has a cost; leaving it there does not.) Even if it is, it will remain backed by swap until it is written to. (Until it is written to, the existing swap space may save a disk write if the page needs to be swapped in the future. Invalidating the page costs a little; leaving it there does not.) Basically use of swap and non-use of RAM are *not* problems. -- Boyd Stephen Smith Jr. ,= ,-_-. =. b...@iguanasuicide.net ((_/)o o(\_)) ICQ: 514984 YM/AIM: DaTwinkDaddy `-'(. .)`-' http://iguanasuicide.net/ \_/ signature.asc Description: This is a digitally signed message part.
Re: Use of Swap Space
On Sat, Jan 31, 2009 at 12:54:34AM +, Dean Chester wrote: Hi I recently noticed that my CPU is at 100% when the temperature of my CPU is high. Taking a look at System Monitor i have also discovered that my swap space is being used while only 13% of the RAM is, why isn't is using the rest of the RAM. Has anyone got any ideas why? No. CPU utilization has nothing directly to do with swap usage. If a 100% CPU usage causes your computer to *over*heat (which is something you did not write above) you'll have a problem elsewhere (e.g. a dist-upgrade that includes tex-live :-) ) -- Tzafrir Cohen | tzaf...@jabber.org | VIM is http://tzafrir.org.il || a Mutt's tzaf...@cohens.org.il || best ICQ# 16849754 || friend -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On Sat, Jan 31, 2009 at 02:52:34AM +, Tzafrir Cohen wrote: On Sat, Jan 31, 2009 at 12:54:34AM +, Dean Chester wrote: Hi I recently noticed that my CPU is at 100% when the temperature of my CPU is high. Taking a look at System Monitor i have also discovered that my swap space is being used while only 13% of the RAM is, why isn't is using the rest of the RAM. Has anyone got any ideas why? No. CPU utilization has nothing directly to do with swap usage. If a 100% CPU usage causes your computer to *over*heat (which is something you did not write above) you'll have a problem elsewhere (e.g. a dist-upgrade that includes tex-live :-) ) Or, is the board firmware slowing down the CPU to allow it to cool, which makes a basically idling debian system to use a higher percentage of available CPU (less idle time). Remember, its a percentage of CPU capacity. If the CPU slows down, the the available capacity decreases. Doug. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Use of Swap Space
On 01/30/2009 09:54 PM, Douglas A. Tutty wrote: On Sat, Jan 31, 2009 at 02:52:34AM +, Tzafrir Cohen wrote: On Sat, Jan 31, 2009 at 12:54:34AM +, Dean Chester wrote: Hi I recently noticed that my CPU is at 100% when the temperature of my CPU is high. Taking a look at System Monitor i have also discovered that my swap space is being used while only 13% of the RAM is, why isn't is using the rest of the RAM. Has anyone got any ideas why? No. CPU utilization has nothing directly to do with swap usage. If a 100% CPU usage causes your computer to *over*heat (which is something you did not write above) you'll have a problem elsewhere (e.g. a dist-upgrade that includes tex-live :-) ) Or, is the board firmware slowing down the CPU to allow it to cool, which makes a basically idling debian system to use a higher percentage of available CPU (less idle time). Remember, its a percentage of CPU capacity. If the CPU slows down, the the available capacity decreases. But 100% CPU usage isn't the same as running at 100% of rated clock speed. Is *that* what you are really referring to? -- Ron Johnson, Jr. Jefferson LA USA I am not surprised, for we live long and are celebrated poopers. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
