Could you help on this one?
lsllcm
> Hi All,
>
> I have a question about how many private memory does one single oracle
> server process allocate? I read some articles, one oracle server
> process allocates about 2-3M per session. So I want to verify on local
> system (OS is ras 4.0 linux).
>
> Here one oracle process pid is 25243, I look into /proc/25243/status
> ...
> VmSize: 1008336 kB
> VmLck: 0 kB
> VmRSS: 11668 kB
> VmData: 1600 kB
> VmStk: 52 kB
> VmExe: 37311 kB
> VmLib: 4557 kB
> StaBrk: 0ad6f000 kB
> Brk: 0adb5000 kB
> StaStk: bffff9b0 kB
> ...
>
> We know one server process has shared memory, private memory, Could you
> tell me what parts are private memory?
>
> Only VmData and VmStk are less than 2M!!!
>
> When I run pmap command pmap -x 25243
> The following are output:
>
> 25243: oraclepftest (LOCAL=NO)
> Address Kbytes RSS Anon Locked Mode Mapping
> 00940000 72 - - - r-x-- libnsl-2.3.4.so
> 00952000 8 - - - rw--- libnsl-2.3.4.so
> 00954000 8 - - - rw--- [ anon ]
> 00aea000 84 - - - r-x-- ld-2.3.4.so
> 00aff000 4 - - - r---- ld-2.3.4.so
> 00b00000 4 - - - rw--- ld-2.3.4.so
> 00b03000 4 - - - r-x-- libaio.so.1.0.0
> 00b04000 4 - - - rw--- libaio.so.1.0.0
> 00c57000 8 - - - r-x-- libdl-2.3.4.so
> 00c59000 8 - - - rw--- libdl-2.3.4.so
> 08048000 37312 - - - r-x-- oracle
> 0a4b8000 8804 - - - rw--- oracle
> 0ad51000 400 - - - rw--- [ anon ]
> 50000000 425984 - - - rw-s- [ shmid=0x0 ]
> 6a000000 4 - - - r--s- [ shmid=0x0 ]
> 6a001000 1156 - - - rw-s- [ shmid=0x0 ]
> 6a122000 4 - - - r--s- [ shmid=0x0 ]
> 6a123000 2932 - - - rw-s- [ shmid=0x0 ]
> 978f9000 512 - - - rw--- zero
> 97979000 724 - - - rw--- [ anon ]
> 97a2e000 32 - - - rw-s- orashm_32769
> 97a36000 32 - - - rw-s- orashm_32769
> 97a3e000 32 - - - rw-s- orashm_32769
> 97a46000 32 - - - rw-s- orashm_32769
> 97a4e000 32 - - - rw-s- orashm_32769
> 97a56000 524128 - - - rw-s- orashm_32769
> b7a2e000 36 - - - r-x-- libnss_files-2.3.4.so
> b7a37000 8 - - - rw--- libnss_files-2.3.4.so
> b7a39000 180 - - - rw--- [ anon ]
> b7a66000 1160 - - - r-x-- libc-2.3.4.so
> b7b88000 4 - - - r---- libc-2.3.4.so
> b7b89000 12 - - - rw--- libc-2.3.4.so
> b7b8c000 8 - - - rw--- [ anon ]
> b7b8e000 56 - - - r-x-- libpthread-0.10.so
> b7b9c000 8 - - - rw--- libpthread-0.10.so
> b7b9e000 268 - - - rw--- [ anon ]
> b7be1000 132 - - - r-x-- libm-2.3.4.so
> b7c02000 8 - - - rw--- libm-2.3.4.so
> b7c04000 2940 - - - r-x-- libjox9.so
> b7ee3000 1088 - - - rw--- libjox9.so
> b7ff3000 8 - - - rw--- [ anon ]
> b7ff5000 4 - - - r-x-- libskgxn9.so
> b7ff6000 8 - - - rw--- libskgxn9.so
> b7ff8000 4 - - - r-x-- libskgxp9.so
> b7ff9000 4 - - - ----- libskgxp9.so
> b7ffa000 4 - - - rw--- libskgxp9.so
> b7ffb000 4 - - - r-x-- libodmd9.so
> b7ffc000 4 - - - rw--- libodmd9.so
> b7ffd000 4 - - - r-x-- libcwait.so
> b7ffe000 4 - - - rw--- libcwait.so
> b7fff000 4 - - - rw--- [ anon ]
> bfff3000 52 - - - rwx-- [ stack ]
> ffffe000 4 - - - ----- [ anon ]
> -------- ------- ------- ------- -------
> total kB 1008340 - - -
>
> Could you tell me what parts are private memory in these output?
>
> Thanks in advance!
Received on Mon Oct 23 2006 - 20:39:13 CDT
