我有一臺

Linux機器在軟件方面沒有運行太多,但是在某種程度上使用了1.7GB的2GB已安裝內存.當我自由奔跑時,我得到：

total used free shared buffers cached

Mem: 2072616 1979972 92644 0 164876 129740

-/+ buffers/cache: 1685356 387260

Swap: 498004 1632 496372

當我運行頂部時,我獲得與第一行免費相同的數字(由于內存使用現已自行修復,因此無法重現).

但是,當我運行ps aux時,所有進程的內存使用量僅為295.9MB,這與使用免費報告的1.7GB內存相差甚遠.

為什么會出現這種差異？

編輯：

這是請求的額外信息,但我認為它不會有多大幫助,因為我現在顯示?使用免費使用360MB,使用ps aux總計使用~300MB.不確定為什么問題會自行糾正.

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

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

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