1. 程式人生 > >linux程序管理雜記(2)

linux程序管理雜記(2)

vmstat

[[email protected] Packages]# vmstat
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu-----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
 0  0     56  15876  38204 295152    0    0     4     3   21   18  0  1 99  0  0    

每隔一秒重新整理一次

[[email protected]
Packages]# vmstat 1 procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 0 0 56 15876 38244 295156 0 0 4 3 21 18 0 1 99 0 0 0 0 56 15876 38244 295156 0 0
0 0 19 18 0 0 100 0 0

每隔一秒重新整理一次,刷5次

[[email protected] Packages]# vmstat 1 5
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu-----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
 0  0     56  16016  38252 295156    0    0     4     3
21 18 0 1 99 0 0 0 0 56 16000 38252 295156 0 0 0 0 19 18 0 0 100 0 0 0 0 56 16000 38252 295156 0 0 0 0 15 19 0 0 100 0 0 0 0 56 16000 38252 295156 0 0 0 0 19 20 0 0 100 0 0 0 0 56 16000 38252 295156 0 0 0 0 18 22 0 0 100 0 0

顯示記憶體統計資料

[[email protected] Packages]# vmstat -s
       500920  total memory
       485152  used memory
       166076  active memory
       209088  inactive memory
        15768  free memory
        38484  buffer memory
       295160  swap cache
      4194300  total swap
           56  used swap
      4194244  free swap
        12253 non-nice user cpu ticks
         1030 nice user cpu ticks
        45577 system cpu ticks
     13913975 idle cpu ticks
        19671 IO-wait cpu ticks
         2005 IRQ cpu ticks
        56053 softirq cpu ticks
            0 stolen cpu ticks
       574569 pages paged in
       365158 pages paged out
            0 pages swapped in
           14 pages swapped out
      2913423 interrupts
      2544112 CPU context switches
   1465975126 boot time
        19538 forks

pmap

顯示程序1程序的記憶體對映表

[[email protected] Packages]# pmap 1
1:   /sbin/init
00007fa85b25f000     52K r-x--  /lib64/libnss_files-2.12.so
00007fa85b26c000   2044K -----  /lib64/libnss_files-2.12.so
00007fa85b46b000      4K r----  /lib64/libnss_files-2.12.so
00007fa85b46c000      4K rw---  /lib64/libnss_files-2.12.so
00007fa85b46d000   1576K r-x--  /lib64/libc-2.12.so
00007fa85b5f7000   2048K -----  /lib64/libc-2.12.so
00007fa85b7f7000     16K r----  /lib64/libc-2.12.so
00007fa85b7fb000      8K rw---  /lib64/libc-2.12.so
00007fa85b7fd000     16K rw---    [ anon ]
00007fa85b801000     88K r-x--  /lib64/libgcc_s-4.4.7-20120601.so.1
00007fa85b817000   2044K -----  /lib64/libgcc_s-4.4.7-20120601.so.1
00007fa85ba16000      4K rw---  /lib64/libgcc_s-4.4.7-20120601.so.1
00007fa85ba17000     28K r-x--  /lib64/librt-2.12.so
00007fa85ba1e000   2044K -----  /lib64/librt-2.12.so
00007fa85bc1d000      4K r----  /lib64/librt-2.12.so
00007fa85bc1e000      4K rw---  /lib64/librt-2.12.so
00007fa85bc1f000     92K r-x--  /lib64/libpthread-2.12.so
00007fa85bc36000   2048K -----  /lib64/libpthread-2.12.so
00007fa85be3600
            
           

相關推薦

no