1.查看系统Swap空间使用 [root@jumper usr]# free total used free shared buffers cached Mem: 513980 493640 20340 0 143808 271780 -/+ buffers/cache: 78052 435928 Swap: 1052248 21256 1030992 2.在空间合适处创建swap文件 [root@jumper usr]# mkdir swap [root@jumper usr]# cd swap [root@jumper swap]# dd if=/dev/zero of=swapfile bs=1024 count=10000 10000+0 records in 10000+0 records out [root@jumper swap]# ls -al total 10024 drwxr-xr-x 2 root root 4096 7月 28 14:58 . drwxr-xr-x 19 root root 4096 7月 28 14:57 .. -rw-r--r-- 1 root root 10240000 7月 28 14:58 swapfile [root@jumper swap]# mkswap swapfile Setting up swapspace version 1, size = 9996 KiB
3.激活swap文件 [root@jumper swap]# swapon swapfile [root@jumper swap]# ls -l total 10016 -rw-r--r-- 1 root root 10240000 7月 28 14:58 swapfile [root@jumper swap]# free total used free shared buffers cached Mem: 513980 505052 8928 0 143900 282288 -/+ buffers/cache: 78864 435116 Swap: 1062240 21256 1040984 [root@jumper swap]#
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