From: RichardR <randjunk@gmail.com>
To: linux-mm@kvack.org
Subject: memory going down, cached unflushed with a system in a 100%idle state
Date: Sun, 27 Mar 2005 13:37:52 +0000 [thread overview]
Message-ID: <ea908f9e050327053725659753@mail.gmail.com> (raw)
hi all
I have a SUN v20z running with RHEL/WS3 with kernel 2.4.21-20.ELsmp
and I have this freaky problem about memory running out when I ran
unix processes. I just dont know if there are related in the problem.
our server is running in a production mode, and we have many "ssh",
"screen" running at the same time on the same machine. we also have
nfs access disk. what I can't understand is that the cached memory is
still increasing when i ran under init level 3 getting rid of useless
processes... as you can see the "ps auwwx" below, we just have 400kB
used by the kernel and we have 4GB memory !!
[root@katy root]# ps auwwx | sort -n +4 | grep -v sort | awk
'BEGIN{a=0;b=0}{a+=$5;b+=$6}END{print "VSZ=",a,"RSS=",b}'
VSZ= 468392 RSS= 35140
[root@katy root]# free;cat /proc/meminfo
total used free shared buffers cached
Mem: 3992872 3680732 312140 0 177680 3100764
-/+ buffers/cache: 402288 3590584
Swap: 2096472 3860 2092612
total: used: free: shared: buffers: cached:
Mem: 4088700928 3769069568 319631360 0 181944320 3178291200
Swap: 2146787328 3952640 2142834688
MemTotal: 3992872 kB
MemFree: 312140 kB
MemShared: 0 kB
Buffers: 177680 kB
Cached: 3100764 kB
SwapCached: 3036 kB
Active: 2471260 kB
ActiveAnon: 6492 kB
ActiveCache: 2464768 kB
Inact_dirty: 605604 kB
Inact_laundry: 131072 kB
Inact_clean: 78340 kB
Inact_target: 657252 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 3992872 kB
LowFree: 312140 kB
SwapTotal: 2096472 kB
SwapFree: 2092612 kB
HugePages_Total: 0
HugePages_Free: 0
Hugepagesize: 2048 kB
Thanks for your help guys.
Cheers,
--
Richard R.
IT Soft/System Engineer
CNRS/IN2P3/LPNHE
Jussieu - Paris VI
--
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