aix中procmap 查看oracle进程占用系统内存

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标题:aix中procmap 查看oracle进程占用系统内存

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procmap是用来显示进程地址空间,通过这个命令找出来的“read/write”表示为进程的私有内存,如果对应到oracle 进程的LOCAL中来,也就是对应了是oracle 会话进程占用的操作系统内存,和sga与pga无关,即ORACLE数据库进程占用的额外的系统内存,在计算oracle数据库消耗内存的时候,要考虑sga+pga+process占用的内存
procmap命令使用

$procmap 7931354
7931354 : oracleccicdx (LOCAL=NO) 
100000000            95504K  read/exec         oracle
110000035             2399K  read/write        oracle
9fffffff0000000         51K  read/exec         /usr/ccs/bin/usla64
9fffffff000cfe2          0K  read/write        /usr/ccs/bin/usla64
900000000b05930          2K  read/exec         /usr/lib/libC.a[shr3_64.o]
9001000a0122930          0K  read/write        /usr/lib/libC.a[shr3_64.o]
900000000ae6b00        118K  read/exec         /usr/lib/libC.a[shrcore_64.o]
9001000a030a100         12K  read/write        /usr/lib/libC.a[shrcore_64.o]
900000000ac8000        118K  read/exec         /usr/lib/libC.a[ansicore_64.o]
9001000a0300e00         36K  read/write        /usr/lib/libC.a[ansicore_64.o]
900000000411468          0K  read/exec         /usr/lib/libicudata.a[shr_64.o]
9001000a0121468          0K  read/write        /usr/lib/libicudata.a[shr_64.o]
90000000040f738          2K  read/exec         /usr/lib/libC.a[shr2_64.o]
9001000a0314738          0K  read/write        /usr/lib/libC.a[shr2_64.o]
9000000008dd800       1699K  read/exec         /usr/lib/libC.a[ansi_64.o]
9001000a0315a00        277K  read/write        /usr/lib/libC.a[ansi_64.o]
9000000008bab00        135K  read/exec         /usr/lib/libC.a[shr_64.o]
9001000a030eb00         19K  read/write        /usr/lib/libC.a[shr_64.o]
900000000708180       1732K  read/exec         /usr/lib/libicuuc.a[shr_64.o]
9001000a035cdac        180K  read/write        /usr/lib/libicuuc.a[shr_64.o]
900000000493d80       2510K  read/exec         /usr/lib/libicui18n.a[shr_64.o]
9001000a038a148        270K  read/write        /usr/lib/libicui18n.a[shr_64.o]
900000000473200         91K  read/exec         /usr/lib/libsrc.a[shr_64.o]
9001000a01127a8         55K  read/write        /usr/lib/libsrc.a[shr_64.o]
90000000045a300         98K  read/exec         /usr/lib/libcorcfg.a[shr_64.o]
9001000a04147c8         18K  read/write        /usr/lib/libcorcfg.a[shr_64.o]
900000000b16200        750K  read/exec         /usr/lib/liblvm.a[shr_64.o]
9001000a03dd028        219K  read/write        /usr/lib/liblvm.a[shr_64.o]
900000000444f00         82K  read/exec         /usr/lib/libcfg.a[shr_64.o]
9001000a03d58f0         26K  read/write        /usr/lib/libcfg.a[shr_64.o]
90000000040e3a0          2K  read/exec         /usr/lib/libcrypt.a[shr_64.o]
9001000a0106948          0K  read/write        /usr/lib/libcrypt.a[shr_64.o]
90000001615d860          5K  read/exec         /usr/lib/libc.a[aio_64.o]
9001000a3aed568          0K  read/write        /usr/lib/libc.a[aio_64.o]
9000000003efc00        120K  read/exec         /usr/lib/libodm.a[shr_64.o]
9001000a0107cc8         40K  read/write        /usr/lib/libodm.a[shr_64.o]
900000000bd2c80        147K  read/exec         /usr/lib/libperfstat.a[shr_64.o]
9001000a041a960         14K  read/write        /usr/lib/libperfstat.a[shr_64.o]
9000000017d7000          0K  read/exec         /usr/lib/libdl.a[shr_64.o]
9001000a0517000          0K  read/write        /usr/lib/libdl.a[shr_64.o]
9000000158ed100       8636K  read/exec         /oracle/product/db10gr2/lib/libjox10.a[shr.o]
8001000a0000b78        587K  read/write        /oracle/product/db10gr2/lib/libjox10.a[shr.o]
900000000a87000        257K  read/exec         /usr/lib/libpthreads.a[shr_xpg5_64.o]
9001000a0274000        559K  read/write        /usr/lib/libpthreads.a[shr_xpg5_64.o]
900000000000800       4025K  read/exec         /usr/lib/libc.a[shr_64.o]
9001000a0000020       1047K  read/write        /usr/lib/libc.a[shr_64.o]
         Total      121863K

简化命令,统计私有内存,procmap 7931354|grep “read/write” |awk -F ” ” ‘{print $2}’,通过相关计算的出来,在当前的操作系统和数据库版本中,一个LOCAL=NO进程占用系统内存为:5758KB

补充说明
1.操作系统版本

$oslevel -r
6100-06

2.数据库版本

SQL> select * from v$version;

BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE    10.2.0.4.0      Production
TNS for IBM/AIX RISC System/6000: Version 10.2.0.4.0 - Productio
NLSRTL Version 10.2.0.4.0 - Production

3.通过跟踪多个LOCAL=NO进程,发现类似进程占用的系统内存相同,估算给系统oracle进程占用的内存,可以通过该值进行大概估算
4.确认ORACLE使用的内存量不是以往认识的sga+pga,实际上应该是sga+pga+所有oracle进程占用
5.在linux中使用pmap来查看

此条目发表在 AIX, Oracle 分类目录。将固定链接加入收藏夹。

aix中procmap 查看oracle进程占用系统内存》有 2 条评论

  1. harryzhang 说:

    Linux下也可以使用/proc的,而且还可以看swap的使用量

    cat /proc/2934/status
    Name: orarootagent.bi
    State: S (sleeping)
    Tgid: 2934
    Pid: 2934
    PPid: 1
    TracerPid: 0
    Uid: 0 0 0 0
    Gid: 0 0 0 0
    Utrace: 0
    FDSize: 1024
    Groups: 0 1 2 3 4 6 10
    VmPeak: 1669572 kB
    VmSize: 1669568 kB
    VmLck: 0 kB
    VmHWM: 36792 kB
    VmRSS: 27732 kB
    VmData: 1567920 kB
    VmStk: 148 kB
    VmExe: 5516 kB
    VmLib: 56740 kB
    VmPTE: 444 kB
    VmSwap: 6636 kB
    Threads: 22
    SigQ: 8/30454
    SigPnd: 0000000000000000
    ShdPnd: 0000000000010000
    SigBlk: 0000000000010000
    SigIgn: 0000000000381007
    SigCgt: 0000000180004468
    CapInh: 0000000000000000
    CapPrm: ffffffffffffffff
    CapEff: ffffffffffffffff
    CapBnd: ffffffffffffffff
    Cpus_allowed: ffffffff,ffffffff
    Cpus_allowed_list: 0-63
    Mems_allowed: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
    Mems_allowed_list: 0
    voluntary_ctxt_switches: 36474
    nonvoluntary_ctxt_switches: 2531

      [引用]  [回复]

  2. bin_huhj 说:

    你确定:5758KB大小的内存是除sga和pga之外进程占用的内存吗?这样的话是不是有点多?我觉得应该是除sga之外占用的内存。

      [引用]  [回复]

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