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Home -> Community -> Usenet -> c.d.o.server -> How many private memory does one single oracle server process allocate?
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
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 - 06:09:25 CDT
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