[英]How do I configure Linux swap space on AWS Elastic Beanstalk running AWS Linux 2?
[英]How can I retrieve detailed usage of swap space on linux
這個答案提供了一個很好的腳本,該腳本顯示每個進程使用了多少交換空間: 如何找出Linux中正在交換哪些進程?
然而:
petr@eliska:~$ free
total used free shared buffers cached
Mem: 3114288 2930040 184248 0 76 1809800
-/+ buffers/cache: 1120164 1994124
Swap: 6287356 977712 5309644
注意:使用了977MB的交換區,當我運行在此問題之上鏈接的腳本時,我看到
PID=1 swapped 76 KB (init)
PID=369 swapped 404 KB (udevd)
PID=463 swapped 356 KB (udevd)
PID=464 swapped 348 KB (udevd)
PID=1804 swapped 1556 KB (dhclient)
PID=1859 swapped 168 KB (rpcbind)
PID=1890 swapped 408 KB (rpc.statd)
PID=1904 swapped 184 KB (rpc.idmapd)
PID=2240 swapped 348 KB (rsyslogd)
PID=2304 swapped 108 KB (acpid)
PID=2452 swapped 112 KB (atd)
PID=2529 swapped 136 KB (dbus-daemon)
PID=2544 swapped 312 KB (ntpd)
PID=2779 swapped 364 KB (memcached)
PID=2786 swapped 332 KB (sshd)
PID=2859 swapped 128 KB (cron)
PID=2878 swapped 300 KB (exim4)
PID=2904 swapped 132 KB (getty)
PID=2905 swapped 128 KB (getty)
PID=2906 swapped 124 KB (getty)
PID=2907 swapped 128 KB (getty)
PID=2908 swapped 128 KB (getty)
PID=2909 swapped 128 KB (getty)
PID=2918 swapped 744 KB (console-kit-dae)
PID=2985 swapped 156 KB (polkitd)
PID=3243 swapped 3228 KB (node)
PID=3246 swapped 1688 KB (node)
PID=3247 swapped 2580 KB (node)
PID=3249 swapped 2160 KB (node)
PID=3250 swapped 2336 KB (node)
PID=3251 swapped 1900 KB (node)
PID=3686 swapped 16 KB (oracle)
PID=16915 swapped 16 KB (oracle)
PID=29843 swapped 204 KB (java)
PID=29868 swapped 2512 KB (emagent)
PID=29925 swapped 1060 KB (oracle)
Overall swap used: 25008 KB
如何分析交換區域,以便可以看到這些(977-25)MB的用途? 有什么方法可以了解如何使用交換以及交換的哪些部分用於什么?
嘗試跟隨
cat /proc/PID/status | grep VmSwap
該腳本將顯示所有進程的交換使用情況。 (您可以使用grep查找所有完全匹配的項
#!/bin/bash
for file in /proc/*/status ;
do
awk '/VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file;
done
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