Re: [expert] huge memory usage!
On 31 May, Sarang Lakare wrote: You are indeed missing something--look at the amount used for buffers and cache. This can be freed by the system when a program issues a malloc() call. It can be grabbed again from the free memory pool when the program releases it and turned to the same purpose, making your machine run faster. Yes.. agreed.. I know it.. but look at this : [root@vv17 /root]# free total used free sharedbuffers cached Mem:899952 556784 343168 0 170032 265936 -/+ buffers/cache: 120816 779136 Swap: 1791208 1184081672800 [root@vv17 /root]# This is how I interpret it : total used = 556MB buffers = 170MB cached = 256MB Try the attached file. I thought it gave interesting information. L -- Laurent Duperval mailto:[EMAIL PROTECTED] Ce sabot pensant de Kid Ordinn a failli ruiner la réputation du Sud. Heureusement que je suis là! C'est une questiond de patriotisme! -Dog Bull analyse-x.pl
[expert] huge memory usage!
Can anybody please explain this? I don't have X running on this machine. I am showing the output of top sorted by memory usage here. Why is free showing 120MB used?? I am observing this on all the three LM8.0 machines that I have and this could be serious. Am I missing something here? Thanks in advance sarang 3:31pm up 5 days, 2:09, 2 users, load average: 0.00, 0.00, 0.00 54 processes: 53 sleeping, 1 running, 0 zombie, 0 stopped CPU0 states: 0.0% user, 0.1% system, 0.0% nice, 99.4% idle CPU1 states: 0.0% user, 0.0% system, 0.0% nice, 100.0% idle Mem: 899952K av, 556948K used, 343004K free, 0K shrd, 170032K buff Swap: 1791208K av, 118408K used, 1672800K free 265936K cached PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND 1081 squid 14 0 3952 2724 2076 S 0.0 0.3 2:37 squid 13363 root 9 0 1692 1588 1312 S 0.0 0.1 0:00 sshd 13366 root 15 0 1584 1584 1156 S 0.0 0.1 0:00 bash 13403 root 19 0 1204 1204 972 R 0.1 0.1 0:00 top 13354 postfix9 0 804 804 684 S 0.0 0.0 0:00 pickup 11206 sarang 8 0 1084 528 528 S 0.0 0.0 0:00 csh 1154 root 9 0 2512 460 228 S 0.0 0.0 0:03 miniserv.pl 1005 postfix9 0 488 416 416 S 0.0 0.0 0:01 qmgr 821 root 9 0 376 316 316 S 0.0 0.0 0:00 rpc.mountd 636 rpc9 0 264 240 240 S 0.0 0.0 0:00 portmap 11204 root 9 0 564 216 216 S 0.0 0.0 0:00 sshd 763 root 9 0 368 180 156 S 0.0 0.0 0:00 sshd 648 root 9 0 232 176 176 S 0.0 0.0 0:00 syslogd 1079 mysql 9 0 2736 16416 S 0.0 0.0 0:00 mysqld 1134 mysql 9 0 2736 16416 S 0.0 0.0 0:01 mysqld 1135 mysql 9 0 2736 16416 S 0.0 0.0 0:00 mysqld 1153 mysql 9 0 2736 16416 S 0.0 0.0 0:00 mysqld 11508 sarang 9 0 348 132 132 S 0.0 0.0 0:06 xosview 686 root 9 0 184 128 128 S 0.0 0.0 0:01 ypbind 1001 root 9 0 208 12496 S 0.0 0.0 0:01 master 1036 root 10 0 172 11296 S 0.0 0.0 0:00 crond 1 root 9 0 120 7676 S 0.0 0.0 0:07 init 1108 xfs9 0 2128 5252 S 0.0 0.0 0:00 xfs 782 root 9 0 200 20 4 S 0.0 0.0 0:00 xinetd 1047 root 9 0 1848 4 S 0.0 0.0 0:00 safe_mysqld 657 root 9 0 6324 4 S 0.0 0.0 0:00 klogd 672 rpcuser9 0 1164 4 S 0.0 0.0 0:00 rpc.statd 685 root 9 0844 4 S 0.0 0.0 0:00 ypbind 812 root 9 0724 4 S 0.0 0.0 0:00 rpc.rquotad 1080 root 9 0 1884 4 S 0.0 0.0 0:00 squid 1173 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1174 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1175 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1176 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1177 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1178 root 9 0644 4 S 0.0 0.0 0:00 mingetty 2 root 8 0 00 0 SW0.0 0.0 0:00 keventd 3 root 9 0 00 0 SW0.0 0.0 0:25 kswapd 4 root 9 0 00 0 SW0.0 0.0 0:00 kreclaimd 5 root 9 0 00 0 SW0.0 0.0 0:03 bdflush [root@vv17 /root]# free total used free sharedbuffers cached Mem:899952 556784 343168 0 170032 265936 -/+ buffers/cache: 120816 779136 Swap: 1791208 1184081672800 [root@vv17 /root]# [root@vx17 /root]# cat /proc/meminfo total:used:free: shared: buffers: cached: Mem: 921550848 570155008 3513958400 174112768 272318464 Swap: 1834196992 121249792 1712947200 MemTotal: 899952 kB MemFree:343160 kB MemShared: 0 kB Buffers:170032 kB Cached: 265936 kB Active: 7248 kB Inact_dirty:426376 kB Inact_clean: 2344 kB Inact_target:4 kB HighTotal: 0 kB HighFree:0 kB LowTotal: 899952 kB LowFree:343160 kB SwapTotal: 1791208 kB SwapFree: 1672800 kB - Sarang Lakare http://www.cs.sunysb.edu/~lsarang http://www.linux.org
Re: [expert] huge memory usage!
Can anybody please explain this? I don't have X running on this machine. I am showing the output of top sorted by memory usage here. Why is free showing 120MB used?? I am observing this on all the three LM8.0 machines that I have and this could be serious. Am I missing something here? Thanks in advance sarang [root@vv17 /root]# free total used free sharedbuffers cached Mem:899952 556784 343168 0 170032 265936 -/+ buffers/cache: 120816 779136 Swap: 1791208 1184081672800 [root@vv17 /root]# [root@vx17 /root]# cat /proc/meminfo total:used:free: shared: buffers: cached: Mem: 921550848 570155008 3513958400 174112768 272318464 Swap: 1834196992 121249792 1712947200 MemTotal: 899952 kB MemFree:343160 kB MemShared: 0 kB Buffers:170032 kB Cached: 265936 kB Active: 7248 kB Inact_dirty:426376 kB Inact_clean: 2344 kB Inact_target:4 kB HighTotal: 0 kB HighFree:0 kB LowTotal: 899952 kB LowFree:343160 kB SwapTotal: 1791208 kB SwapFree: 1672800 kB - Sarang Lakare http://www.cs.sunysb.edu/~lsarang http://www.linux.org I'd like to see if its the same in runlevel 1. I'm on Red Hat 7.1 (couldn't install LM8) and memory usage is through the roof. -Wes Yates -- -Wes Yates [EMAIL PROTECTED] http://www.artsengraving.com/~wyates No, I will _not_ fix your computer.
Re: [expert] huge memory usage!
So sprach Sarang Lakare am Wed, May 30, 2001 at 03:28:22PM -0400: Can anybody please explain this? I don't have X running on this machine. I am showing the output of top sorted by memory usage here. Why is free showing 120MB used?? You mean the Swap usage? Well, these are old programs which at some time where swapped out. Nothing to worry about. If you'd ever run out of memory (which is doubtful with 880 MB of RAM and such an astronomically gigantic Swap file), it would be dumped to hold more recently used programs/data. BTW: Not that it's any of my business - but what on earth are 1.7gb of swap good for? Alexander Skwar -- How to quote: http://learn.to/quote (german) http://quote.6x.to (english) Homepage: http://www.digitalprojects.com | http://www.iso-top.de iso-top.de - Die günstige Art an Linux Distributionen zu kommen Uptime: 6 hours 26 minutes
Re: [expert] huge memory usage!
You mean the Swap usage? Well, these are old programs which at some time No, not the swap usage.. but the the memory usage.. It shows 126MB used.. how??? top dosn't show any process which is using a lot of memory.. the total of top is about 15mb or so.. where does this extra memory usage come from? I am seeing more and more of this on LM8 machines.. this was never a problem with LM7.x where swapped out. Nothing to worry about. If you'd ever run out of memory (which is doubtful with 880 MB of RAM and such an astronomically gigantic Swap file), it would be dumped to hold more recently used programs/data. I don't agree.. if the process was swapped out fine, but after it finished, the swap should become empty again. I think tis a problem with 2.4.x kernels.. coz I read something about it on the lists. BTW: Not that it's any of my business - but what on earth are 1.7gb of swap good for? I have a 1.5GB system.. and swap was supposed to be double that right? Anyway, I kept it to teh size of the RAM... Here I have a problem too.. I cannot get LM8.0 to detect 1.5GB.. I tried appending mem=1500M to lilo but it didnt' change a bit. (yes I ran lilo b4 rebooting!) any help is highly appreciated. thanks a lot sarang Alexander Skwar -- = Sarang Lakare Department of Computer Science|Linux, MS-DOS and Windows ... PhD Student |(also known as the Good, SUNY Stony Brook, NY, USA | the Bad and the Ugly..) http://www.cs.sunysb.edu/~lsarang |http://www.linux.com mailto:[EMAIL PROTECTED] |mailto:[EMAIL PROTECTED]
Re[2]: [expert] huge memory usage!
Alexander Skwar [EMAIL PROTECTED] wrote: BTW: Not that it's any of my business - but what on earth are 1.7gb of swap good for? I just read that across the cubewall to my neighbor and he said Video editing (he does a lot of that) Then he said - In 10 years, we'll all be doing climate simulations on our laptops! cute... rc Rusty Carruth Email: [EMAIL PROTECTED] or [EMAIL PROTECTED] Voice: (480) 345-3621 SnailMail: Schlumberger ATE FAX: (480) 345-8793 7855 S. River Parkway, Suite 116 Ham: N7IKQ @ 146.82+,pl 162.2 Tempe, AZ 85284-1825 ICBM: 33 20' 44N 111 53' 47W
Re[2]: [expert] huge memory usage!
Originally I was goin to send this only to Sarang, then I finally saw what Sarang did - see the discovery process below: Sarang Lakare [EMAIL PROTECTED] wrote: You mean the Swap usage? Well, these are old programs which at some time No, not the swap usage.. but the the memory usage.. It shows 126MB used.. how??? top dosn't show any process which is using a lot of memory.. the total of top is about 15mb or so.. where does this extra memory usage come from? Previously you said: 3:31pm up 5 days, 2:09, 2 users, load average: 0.00, 0.00, 0.00 54 processes: 53 sleeping, 1 running, 0 zombie, 0 stopped CPU0 states: 0.0% user, 0.1% system, 0.0% nice, 99.4% idle CPU1 states: 0.0% user, 0.0% system, 0.0% nice, 100.0% idle Mem: 899952K av, 556948K used, 343004K free, 0K shrd, 170032K buff Swap: 1791208K av, 118408K used, 1672800K free 265936K cached Now, I'm confused. Where do you see 15mb or so of memory used? Here, let me interpolate some commas: 3:31pm up 5 days, 2:09, 2 users, load average: 0.00, 0.00, 0.00 54 processes: 53 sleeping, 1 running, 0 zombie, 0 stopped CPU0 states: 0.0% user, 0.1% system, 0.0% nice, 99.4% idle CPU1 states: 0.0% user, 0.0% system, 0.0% nice, 100.0% idle Mem: 899,952K av, 556,948K used, 343,004K free, 0K shrd, 170,032K buff Swap: 1,791,208K av, 118,408K used, 1,672,800K free 265,936K cached So I see 1/2 gig used. Also, beware - top shows 2 numbers - total RAM in use currently, AND total actual size of the program. Unfortunately top does NOT appear to allow you to sort on that 2nd number... Hmm. So, I added up all the numbers under top, and got 31,088 kbytes. Now you've got me wondering. What does ps -axl say? rc Rusty Carruth Email: [EMAIL PROTECTED] or [EMAIL PROTECTED] Voice: (480) 345-3621 SnailMail: Schlumberger ATE FAX: (480) 345-8793 7855 S. River Parkway, Suite 116 Ham: N7IKQ @ 146.82+,pl 162.2 Tempe, AZ 85284-1825 ICBM: 33 20' 44N 111 53' 47W
Re: [expert] huge memory usage!
So sprach Sarang Lakare am Wed, May 30, 2001 at 04:06:10PM -0400: No, not the swap usage.. but the the memory usage.. It shows 126MB used.. how??? top dosn't show any process which is using a lot of memory.. the total of top is about 15mb or so.. where does this extra memory usage come from? Old data. Since you have suge a huge amount of memory, stuff hardly gets deleted. Stuff includes things like old images, sound or what not else. And I think that I read somewhere, that also each page of SWAP requires some amount of RAM. Don't know where I read it, though. I don't agree.. if the process was swapped out fine, but after it finished, the swap should become empty again. I think tis a problem with 2.4.x Well, why should it become empty? If there's still enough room in Swap/RAM, what good would it be to drop the memory? I mean, suppose you start GIMP with a huge file. The first time, it's gonna be slow. Quit GIMP. Restart GIMP with this huge file. It should be an awfull lot faster. This is, because the image and all that is still in RAM/Swap. If the kernel would drop the memory, you would not get this speed improvement. I have a 1.5GB system.. and swap was supposed to be double that right? No. This was in 'ancient' times. Nowadays this is no more true. With 1.5 GB of RAM, you're fine with 256 MB of SWAP, so that you have some prior notice that you're system is crowded. I mean, when you start to swap, you'll notice that you have a problem because all your ram is full. Here I have a problem too.. I cannot get LM8.0 to detect 1.5GB.. I tried appending mem=1500M to lilo but it didnt' change a bit. (yes I ran lilo b4 rebooting!) Don't know for sure, but in Cooker there's a -enterprise kernel. Only this -enterprise kernel supports huge amounts of memory like you've got. Alexander Skwar -- How to quote: http://learn.to/quote (german) http://quote.6x.to (english) Homepage: http://www.digitalprojects.com | http://www.iso-top.de iso-top.de - Die günstige Art an Linux Distributionen zu kommen Uptime: 7 hours 5 minutes
Re: [expert] huge memory usage!
On Wednesday 30 May 2001 12:28, Sarang Lakare wrote: Can anybody please explain this? I don't have X running on this machine. I am showing the output of top sorted by memory usage here. Why is free showing 120MB used?? I am observing this on all the three LM8.0 machines that I have and this could be serious. Am I missing something here? Thanks in advance sarang You are indeed missing something--look at the amount used for buffers and cache. This can be freed by the system when a program issues a malloc() call. It can be grabbed again from the free memory pool when the program releases it and turned to the same purpose, making your machine run faster. In Windows, you are taught to reboot when your resource meter drops. In linux, unused memory is considered WASTED memory. The system, the kernel, WILL employ it for something beneficial if at all possible. Your systems are functioning mormally. Civileme 3:31pm up 5 days, 2:09, 2 users, load average: 0.00, 0.00, 0.00 54 processes: 53 sleeping, 1 running, 0 zombie, 0 stopped CPU0 states: 0.0% user, 0.1% system, 0.0% nice, 99.4% idle CPU1 states: 0.0% user, 0.0% system, 0.0% nice, 100.0% idle Mem: 899952K av, 556948K used, 343004K free, 0K shrd, 170032K buff Swap: 1791208K av, 118408K used, 1672800K free 265936K cached PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND 1081 squid 14 0 3952 2724 2076 S 0.0 0.3 2:37 squid 13363 root 9 0 1692 1588 1312 S 0.0 0.1 0:00 sshd 13366 root 15 0 1584 1584 1156 S 0.0 0.1 0:00 bash 13403 root 19 0 1204 1204 972 R 0.1 0.1 0:00 top 13354 postfix9 0 804 804 684 S 0.0 0.0 0:00 pickup 11206 sarang 8 0 1084 528 528 S 0.0 0.0 0:00 csh 1154 root 9 0 2512 460 228 S 0.0 0.0 0:03 miniserv.pl 1005 postfix9 0 488 416 416 S 0.0 0.0 0:01 qmgr 821 root 9 0 376 316 316 S 0.0 0.0 0:00 rpc.mountd 636 rpc9 0 264 240 240 S 0.0 0.0 0:00 portmap 11204 root 9 0 564 216 216 S 0.0 0.0 0:00 sshd 763 root 9 0 368 180 156 S 0.0 0.0 0:00 sshd 648 root 9 0 232 176 176 S 0.0 0.0 0:00 syslogd 1079 mysql 9 0 2736 16416 S 0.0 0.0 0:00 mysqld 1134 mysql 9 0 2736 16416 S 0.0 0.0 0:01 mysqld 1135 mysql 9 0 2736 16416 S 0.0 0.0 0:00 mysqld 1153 mysql 9 0 2736 16416 S 0.0 0.0 0:00 mysqld 11508 sarang 9 0 348 132 132 S 0.0 0.0 0:06 xosview 686 root 9 0 184 128 128 S 0.0 0.0 0:01 ypbind 1001 root 9 0 208 12496 S 0.0 0.0 0:01 master 1036 root 10 0 172 11296 S 0.0 0.0 0:00 crond 1 root 9 0 120 7676 S 0.0 0.0 0:07 init 1108 xfs9 0 2128 5252 S 0.0 0.0 0:00 xfs 782 root 9 0 200 20 4 S 0.0 0.0 0:00 xinetd 1047 root 9 0 1848 4 S 0.0 0.0 0:00 safe_mysqld 657 root 9 0 6324 4 S 0.0 0.0 0:00 klogd 672 rpcuser9 0 1164 4 S 0.0 0.0 0:00 rpc.statd 685 root 9 0844 4 S 0.0 0.0 0:00 ypbind 812 root 9 0724 4 S 0.0 0.0 0:00 rpc.rquotad 1080 root 9 0 1884 4 S 0.0 0.0 0:00 squid 1173 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1174 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1175 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1176 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1177 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1178 root 9 0644 4 S 0.0 0.0 0:00 mingetty 2 root 8 0 00 0 SW0.0 0.0 0:00 keventd 3 root 9 0 00 0 SW0.0 0.0 0:25 kswapd 4 root 9 0 00 0 SW0.0 0.0 0:00 kreclaimd 5 root 9 0 00 0 SW0.0 0.0 0:03 bdflush [root@vv17 /root]# free total used free sharedbuffers cached Mem:899952 556784 343168 0 170032 265936 -/+ buffers/cache: 120816 779136 Swap: 1791208 1184081672800 [root@vv17 /root]# [root@vx17 /root]# cat /proc/meminfo total:used:free: shared: buffers: cached: Mem: 921550848 570155008 3513958400 174112768 272318464 Swap: 1834196992 121249792 1712947200 MemTotal: 899952 kB MemFree:343160 kB MemShared: 0 kB Buffers:170032 kB Cached: 265936 kB Active: 7248 kB Inact_dirty:426376 kB Inact_clean: 2344 kB Inact_target:4 kB HighTotal:
Re: [expert] huge memory usage!
You are indeed missing something--look at the amount used for buffers and cache. This can be freed by the system when a program issues a malloc() call. It can be grabbed again from the free memory pool when the program releases it and turned to the same purpose, making your machine run faster. Yes.. agreed.. I know it.. but look at this : [root@vv17 /root]# free total used free sharedbuffers cached Mem:899952 556784 343168 0 170032 265936 -/+ buffers/cache: 120816 779136 Swap: 1791208 1184081672800 [root@vv17 /root]# This is how I interpret it : total used = 556MB buffers = 170MB cached = 256MB therefore, buff+chached 426MB so after removing buff and cached we get = 556 - 426 = 130MB i.e the current processes are using 130MB. Now I don't have anything running on the machine right now.. so whatever memory was used by older processes should now be part of buffer and cache right? Then where does this extra memory usage come from? When I reboot the machine, the usaage is just 35MB In Windows, you are taught to reboot when your resource meter drops. In linux, unused memory is considered WASTED memory. The system, the kernel, WILL employ it for something beneficial if at all possible. I know this and I am not comparing with windows.. Let me tell you that I have never ever seriously used windows.. played with it a little bit when 95 came out, but coding was mostly in dos in those days.. then IRIX and for the past 11/2 years, full time linux :) I am keeping the rest of the mail for reference. thanks! sarang 3:31pm up 5 days, 2:09, 2 users, load average: 0.00, 0.00, 0.00 54 processes: 53 sleeping, 1 running, 0 zombie, 0 stopped CPU0 states: 0.0% user, 0.1% system, 0.0% nice, 99.4% idle CPU1 states: 0.0% user, 0.0% system, 0.0% nice, 100.0% idle Mem: 899952K av, 556948K used, 343004K free, 0K shrd, 170032K buff Swap: 1791208K av, 118408K used, 1672800K free 265936K cached PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND 1081 squid 14 0 3952 2724 2076 S 0.0 0.3 2:37 squid 13363 root 9 0 1692 1588 1312 S 0.0 0.1 0:00 sshd 13366 root 15 0 1584 1584 1156 S 0.0 0.1 0:00 bash 13403 root 19 0 1204 1204 972 R 0.1 0.1 0:00 top 13354 postfix9 0 804 804 684 S 0.0 0.0 0:00 pickup 11206 sarang 8 0 1084 528 528 S 0.0 0.0 0:00 csh 1154 root 9 0 2512 460 228 S 0.0 0.0 0:03 miniserv.pl 1005 postfix9 0 488 416 416 S 0.0 0.0 0:01 qmgr 821 root 9 0 376 316 316 S 0.0 0.0 0:00 rpc.mountd 636 rpc9 0 264 240 240 S 0.0 0.0 0:00 portmap 11204 root 9 0 564 216 216 S 0.0 0.0 0:00 sshd 763 root 9 0 368 180 156 S 0.0 0.0 0:00 sshd 648 root 9 0 232 176 176 S 0.0 0.0 0:00 syslogd 1079 mysql 9 0 2736 16416 S 0.0 0.0 0:00 mysqld 1134 mysql 9 0 2736 16416 S 0.0 0.0 0:01 mysqld 1135 mysql 9 0 2736 16416 S 0.0 0.0 0:00 mysqld 1153 mysql 9 0 2736 16416 S 0.0 0.0 0:00 mysqld 11508 sarang 9 0 348 132 132 S 0.0 0.0 0:06 xosview 686 root 9 0 184 128 128 S 0.0 0.0 0:01 ypbind 1001 root 9 0 208 12496 S 0.0 0.0 0:01 master 1036 root 10 0 172 11296 S 0.0 0.0 0:00 crond 1 root 9 0 120 7676 S 0.0 0.0 0:07 init 1108 xfs9 0 2128 5252 S 0.0 0.0 0:00 xfs 782 root 9 0 200 20 4 S 0.0 0.0 0:00 xinetd 1047 root 9 0 1848 4 S 0.0 0.0 0:00 safe_mysqld 657 root 9 0 6324 4 S 0.0 0.0 0:00 klogd 672 rpcuser9 0 1164 4 S 0.0 0.0 0:00 rpc.statd 685 root 9 0844 4 S 0.0 0.0 0:00 ypbind 812 root 9 0724 4 S 0.0 0.0 0:00 rpc.rquotad 1080 root 9 0 1884 4 S 0.0 0.0 0:00 squid 1173 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1174 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1175 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1176 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1177 root 9 0644 4 S 0.0 0.0 0:00 mingetty 1178 root 9 0644 4 S 0.0 0.0 0:00 mingetty 2 root 8 0 00 0 SW0.0 0.0 0:00 keventd 3 root 9 0 00 0 SW0.0 0.0 0:25 kswapd 4 root 9 0 00 0 SW0.0 0.0 0:00 kreclaimd 5 root 9 0 00 0 SW0.0 0.0 0:03
Re: [expert] huge memory usage!
Old data. Since you have suge a huge amount of memory, stuff hardly gets deleted. Stuff includes things like old images, sound or what not else. but shouldn't this non-deleted stuff be part of cache/buffer? then in teh -/+ buffer/cache, the memory used shown should be that of the currently running processes right? I don't agree.. if the process was swapped out fine, but after it finished, the swap should become empty again. I think tis a problem with 2.4.x Well, why should it become empty? If there's still enough room in Swap/RAM, what good would it be to drop the memory? I mean, suppose you You are right.. infact I knew this.. I was prolly out of my mind when I asked this Q ;) Actually what I meant probably was that when a process is done, shouldnt' the memory associated with the process become part of cache/buffer? and if so, then teh -/+ buff/chache shld show the difference right? I have a 1.5GB system.. and swap was supposed to be double that right? No. This was in 'ancient' times. Nowadays this is no more true. With 1.5 GB of RAM, you're fine with 256 MB of SWAP, so that you have some prior notice that you're system is crowded. I mean, when you start to swap, you'll notice that you have a problem because all your ram is full. hmm.. thats news to me! Don't know for sure, but in Cooker there's a -enterprise kernel. Only this -enterprise kernel supports huge amounts of memory like you've got. Can anybody from Mandrake throw any light on this? LM 7.2 standard could see 1.5GB memory.. If I really do need an enterprise kernel, then what's the limit to the standard kernel? what's the diff between the standard adn the ent. kernel? where is all this documented? thanks for all your help. sarang -- - Sarang Lakare http://www.cs.sunysb.edu/~lsarang http://www.linux.org
Re: Re[2]: [expert] huge memory usage!
Previously you said: 3:31pm up 5 days, 2:09, 2 users, load average: 0.00, 0.00, 0.00 54 processes: 53 sleeping, 1 running, 0 zombie, 0 stopped CPU0 states: 0.0% user, 0.1% system, 0.0% nice, 99.4% idle CPU1 states: 0.0% user, 0.0% system, 0.0% nice, 100.0% idle Mem: 899952K av, 556948K used, 343004K free, 0K shrd, 170032K buff Swap: 1791208K av, 118408K used, 1672800K free 265936K cached Now, I'm confused. Where do you see 15mb or so of memory used? I was adding up the SIZE field of the processes shown by top. 3:31pm up 5 days, 2:09, 2 users, load average: 0.00, 0.00, 0.00 54 processes: 53 sleeping, 1 running, 0 zombie, 0 stopped CPU0 states: 0.0% user, 0.1% system, 0.0% nice, 99.4% idle CPU1 states: 0.0% user, 0.0% system, 0.0% nice, 100.0% idle Mem: 899,952K av, 556,948K used, 343,004K free, 0K shrd, 170,032K buff Swap: 1,791,208K av, 118,408K used, 1,672,800K free 265,936K cached So I see 1/2 gig used. thats what I meant.. this thing shows 1/2 gig (actually its 126 MB aftre removing buff and cache) but the total of processes as seen in top is just around 15MB. Also, beware - top shows 2 numbers - total RAM in use currently, AND total actual size of the program. Unfortunately top does NOT appear to allow you to sort on that 2nd number... Hmm. So, I added up all the numbers under top, and got 31,088 kbytes. Now you've got me wondering. What does ps -axl say? i'll try that.. unfortunately I rebooted the machine.. so lemme try it again sarang rc Rusty Carruth Email: [EMAIL PROTECTED] or [EMAIL PROTECTED] Voice: (480) 345-3621 SnailMail: Schlumberger ATE FAX: (480) 345-8793 7855 S. River Parkway, Suite 116 Ham: N7IKQ @ 146.82+,pl 162.2 Tempe, AZ 85284-1825 ICBM: 33 20' 44N 111 53' 47W -- - Sarang Lakare http://www.cs.sunysb.edu/~lsarang http://www.linux.org
