交换使用率很低,操作系统有时耗尽内存并开始划分流程
swapon -s Filename Type Size Used Priority /dev/vda1 partition 2047992 75030 1
内存使用率约为97%.知道什么是错的吗?我尝试关闭/打开交换,这没有帮助.v
Centos 6.5 /内核2.6.32
cat /proc/meminfo MemTotal: 15000800 kB MemFree: 300532 kB Buffers: 11364 kB Cached: 211224 kB SwapCached: 0 kB Active: 12613992 kB Inactive: 1854012 kB Active(anon): 12555272 kB Inactive(anon): 1690320 kB Active(file): 58720 kB Inactive(file): 163692 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 2047992 kB SwapFree: 2047992 kB Dirty: 68 kB Writeback: 0 kB AnonPages: 14245460 kB Mapped: 19440 kB Shmem: 176 kB Slab: 76136 kB SReclaimable: 48572 kB SUnreclaim: 27564 kB KernelStack: 2400 kB PageTables: 35352 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 9548392 kB Committed_AS: 7996680 kB VmallocTotal: 34359738367 kB VmallocUsed: 40680 kB VmallocChunk: 34359684884 kB HardwareCorrupted: 0 kB AnonHugePages: 9834496 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 9204 kB DirectMap2M: 15417344 kB
swappiness看起来不错
cat /proc/sys/vm/swappiness 60
非常有趣的是你有近300 MB免费和200缓存可能你的swappines它没有攻击性,我在过去玩过很多次以便在托管VPS中获得更多性能,所以你必须更改你的vm.swappiness内核参数来设置这些链接对你有好处,但在投入生产前要小心测试.
https://askubuntu.com/questions/103915/how-do-i-configure-swappiness
https://en.wikipedia.org/wiki/Swappiness
我希望它有所帮助!