Linux上的内存使用情况与`free`不匹配
副标题[/!--empirenews.page--]
我有一台 Linux机器在软件方面没有运行太多,但是在某种程度上使用了1.7GB的2GB已安装内存.当我自由奔跑时,我得到: total used free shared buffers cached Mem: 2072616 1979972 92644 0 164876 129740 -/+ buffers/cache: 1685356 387260 Swap: 498004 1632 496372 当我运行顶部时,我获得与第一行免费相同的数字(由于内存使用现已自行修复,因此无法重现). 但是,当我运行ps aux时,所有进程的内存使用量仅为295.9MB,这与使用免费报告的1.7GB内存相差甚远. 为什么会出现这种差异? 编辑: 这是请求的额外信息,但我认为它不会有多大帮助,因为我现在显示?使用免费使用360MB,使用ps aux总计使用~300MB.不确定为什么问题会自行纠正. 自由 total used free shared buffers cached Mem: 2072616 668484 1404132 0 185868 139196 -/+ buffers/cache: 343420 1729196 Swap: 498004 1632 496372 cat / proc / meminfo MemTotal: 2072616 kB MemFree: 1404628 kB Buffers: 185792 kB Cached: 139196 kB SwapCached: 544 kB Active: 411448 kB Inactive: 210208 kB Active(anon): 218636 kB Inactive(anon): 78216 kB Active(file): 192812 kB Inactive(file): 131992 kB Unevictable: 0 kB Mlocked: 0 kB HighTotal: 1187784 kB HighFree: 761112 kB LowTotal: 884832 kB LowFree: 643516 kB SwapTotal: 498004 kB SwapFree: 496372 kB Dirty: 60 kB Writeback: 0 kB AnonPages: 296168 kB Mapped: 14536 kB Shmem: 184 kB Slab: 39088 kB SReclaimable: 31720 kB SUnreclaim: 7368 kB KernelStack: 888 kB PageTables: 1184 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 1534312 kB Committed_AS: 407808 kB VmallocTotal: 122880 kB VmallocUsed: 5132 kB VmallocChunk: 112808 kB DirectMap4k: 12280 kB DirectMap4M: 897024 kB ps aux USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.0 0.0 1620 548 ? Ss May18 0:04 init [3] root 2 0.0 0.0 0 0 ? S May18 0:00 [kthreadd] root 3 0.0 0.0 0 0 ? S May18 0:00 [migration/0] root 4 0.0 0.0 0 0 ? S May18 0:00 [ksoftirqd/0] root 5 0.0 0.0 0 0 ? S May18 0:00 [watchdog/0] root 6 0.0 0.0 0 0 ? S May18 0:00 [migration/1] root 7 0.0 0.0 0 0 ? S May18 0:00 [ksoftirqd/1] root 8 0.0 0.0 0 0 ? S May18 0:00 [watchdog/1] root 9 0.0 0.0 0 0 ? S May18 0:00 [events/0] root 10 0.0 0.0 0 0 ? S May18 0:00 [events/1] root 11 0.0 0.0 0 0 ? S May18 0:00 [khelper] root 17 0.0 0.0 0 0 ? S May18 0:00 [async/mgr] root 166 0.0 0.0 0 0 ? S May18 0:00 [sync_supers] root 168 0.0 0.0 0 0 ? S May18 0:00 [bdi-default] root 170 0.0 0.0 0 0 ? S May18 0:03 [kblockd/0] root 171 0.0 0.0 0 0 ? S May18 0:03 [kblockd/1] root 174 0.0 0.0 0 0 ? S May18 0:00 [kacpid] root 175 0.0 0.0 0 0 ? S May18 0:00 [kacpi_notify] root 176 0.0 0.0 0 0 ? S May18 0:00 [kacpi_hotplug] root 332 0.0 0.0 0 0 ? S May18 0:00 [ata/0] root 333 0.0 0.0 0 0 ? S May18 0:00 [ata/1] root 334 0.0 0.0 0 0 ? S May18 0:00 [ata_aux] root 336 0.0 0.0 0 0 ? S May18 0:00 [kseriod] root 371 0.0 0.0 0 0 ? S May18 0:00 [rpciod/0] root 372 0.0 0.0 0 0 ? S May18 0:00 [rpciod/1] root 406 0.0 0.0 0 0 ? S May18 0:00 [khungtaskd] root 407 0.0 0.0 0 0 ? S May18 0:20 [kswapd0] root 408 0.0 0.0 0 0 ? S May18 0:00 [aio/0] root 409 0.0 0.0 0 0 ? S May18 0:00 [aio/1] root 410 0.0 0.0 0 0 ? S May18 0:00 [nfsiod] root 411 0.0 0.0 0 0 ? S< May18 0:00 [kslowd000] root 412 0.0 0.0 0 0 ? S< May18 0:00 [kslowd001] root 414 0.0 0.0 0 0 ? S May18 0:00 [crypto/0] root 415 0.0 0.0 0 0 ? S May18 0:00 [crypto/1] root 1172 0.0 0.0 0 0 ? S May18 0:00 [scsi_tgtd/0] root 1173 0.0 0.0 0 0 ? S May18 0:00 [scsi_tgtd/1] root 1177 0.0 0.0 0 0 ? S May18 0:00 [scsi_eh_0] root 1215 0.0 0.0 0 0 ? S May18 0:00 [kpsmoused] root 1228 0.0 0.0 0 0 ? S May18 0:05 [jbd2/sda3-8] root 1229 0.0 0.0 0 0 ? S May18 0:00 [ext4-dio-unwr] root 1230 0.0 0.0 0 0 ? S May18 0:00 [ext4-dio-unwr] root 1322 0.0 0.0 2044 632 ? S<s May18 0:00 /sbin/udevd --d root 1650 0.0 0.0 0 0 ? S May18 0:25 [vmmemctl] root 1678 0.0 0.0 0 0 ? S May18 0:00 [kjournald] root 1680 0.0 0.0 0 0 ? S May18 0:00 [ksuspend_usbd] root 1681 0.0 0.0 0 0 ? S May18 0:00 [khubd] root 1709 0.0 0.0 0 0 ? S May18 0:02 [flush-8:0] root 3157 0.0 0.0 5976 1576 ? Ss May18 0:10 /usr/bin/vmtool root 3222 0.0 0.0 5984 276 ? S May18 0:00 supervising sys root 3223 0.0 0.0 6220 1452 ? Ss May18 0:00 /usr/sbin/syslo root 3224 0.0 0.0 4428 1240 ? S May18 0:00 /bin/sh /etc/sy clamav 3808 0.1 11.4 256396 237488 ? SNsl May18 2:44 /usr/sbin/clamd clamav 3818 0.0 0.0 12368 1684 ? SNs May18 0:03 /usr/bin/freshc root 3984 0.0 0.0 4048 1164 ? Ss May18 0:00 /usr/sbin/ntpd root 4106 0.0 0.0 14228 1868 ? Ss May18 0:00 /usr/sbin/smbd root 4115 0.0 0.0 8360 1128 ? Ss May18 0:00 /usr/sbin/nmbd root 4119 0.0 0.0 14228 852 ? S May18 0:00 /usr/sbin/smbd root 4176 0.0 0.0 8488 1832 ? Ss May18 0:00 sendmail: accep smmsp 4179 0.0 0.0 8212 1372 ? Ss May18 0:00 sendmail: Queue root 4235 0.0 0.1 9824 2700 ? S May18 0:06 /usr/sbin/snmpd root 4295 0.0 0.0 5684 1060 ? Ss May18 0:00 /usr/sbin/sshd root 4415 0.0 0.0 2044 512 ? S< May18 0:00 /sbin/udevd --d uptimed 4456 0.0 0.0 1620 440 ? Ss May18 0:00 /usr/sbin/uptim root 4515 0.0 0.0 3456 716 ? Ss May18 0:00 /usr/sbin/cron root 4609 0.0 0.0 1672 668 tty1 Ss+ May18 0:00 /sbin/agetty 38 root 4610 0.0 0.0 1672 668 tty2 Ss+ May18 0:00 /sbin/agetty 38 root 4611 0.0 0.0 1676 672 tty3 Ss+ May18 0:00 /sbin/agetty 38 root 4612 0.0 0.0 1672 668 tty4 Ss+ May18 0:00 /sbin/agetty 38 root 4613 0.0 0.0 1668 664 tty5 Ss+ May18 0:00 /sbin/agetty 38 root 4614 0.0 0.0 1668 664 tty6 Ss+ May18 0:00 /sbin/agetty 38 root 8761 0.0 0.1 8740 3000 ? Ss 02:02 0:02 sshd: root@nott root 8763 0.0 0.0 5356 1632 ? Ss 02:02 0:02 /usr/lib/misc/s root 8774 0.0 0.1 8744 2988 ? Ss 02:02 0:00 sshd: root@nott root 8776 0.0 0.0 5368 1632 ? Ss 02:02 0:00 /usr/lib/misc/s root 8787 0.0 0.1 8736 2944 ? Ss 02:02 0:00 sshd: root@nott root 8789 0.0 0.0 5232 1520 ? Ss 02:02 0:00 /usr/lib/misc/s root 8812 0.0 0.1 8740 3000 ? Ss 02:04 0:12 sshd: root@nott root 8814 0.0 0.0 5416 1676 ? Ss 02:04 0:13 /usr/lib/misc/s root 8825 0.0 0.1 8744 2992 ? Ss 02:04 0:00 sshd: root@nott root 8827 0.0 0.0 5352 1628 ? Ss 02:04 0:00 /usr/lib/misc/s root 8838 0.0 0.1 8880 3080 ? Ss 02:04 0:00 sshd: root@nott root 8840 0.0 0.0 5436 1768 ? Ss 02:04 0:00 /usr/lib/misc/s root 15237 0.0 0.1 8744 2856 ? Ss 16:00 0:00 sshd: hudson-sl 1000 15239 0.0 0.0 8884 1844 ? S 16:00 0:00 sshd: hudson-sl 1000 15240 0.0 0.0 2908 1084 ? Ss 16:00 0:00 bash -c wget -- 1000 15242 0.2 2.1 671620 44412 ? Sl 16:00 0:08 /etc/java-confi root 15575 0.0 0.1 8768 3008 ? Ss 16:25 0:00 sshd: root@pts/ root 15577 0.0 0.0 4304 1012 pts/0 Ss+ 16:25 0:00 /usr/bin/screen root 15620 0.0 0.1 5428 2100 ? Ss 16:25 0:00 /usr/bin/SCREEN root 15621 0.0 0.1 5304 2576 pts/1 Ss+ 16:25 0:00 -/bin/bash smmsp 15875 0.0 0.1 8492 3476 ? S 16:54 0:00 sendmail: o4JLs root 15888 0.0 0.1 8768 3004 ? Ss 16:58 0:00 sshd: root@pts/ root 15890 0.0 0.0 4316 1028 pts/2 Ss+ 16:59 0:00 /usr/bin/screen root 15933 0.0 0.1 5432 2096 ? Ss 16:59 0:00 /usr/bin/SCREEN root 15934 0.1 0.1 5304 2604 pts/3 Ss 16:59 0:00 -/bin/bash root 16021 0.0 0.0 3856 1060 pts/3 R+ 17:00 0:00 ps aux 解决方法
因为linux内存管理只是简单的古怪? (编辑:晋中站长网) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |