I have VMWare install CentOS 5.5 and deploy some java application. I want to know how much memory remain, As I use command below, All memory is use. But when I check with top command, all process use “0.0%” of memory. So I want to know what happen? What really memory usage on this VM?
Regards, Sathit
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[root@web1 ~]# free -t -m total used free shared buffers cachedMem: 16050 15911 139 0 185 15051-/+ buffers/cache: 674 15376Swap: 49151 0 49151Total: 65202 15911 49290[root@web1 ~]# cat /proc/meminfoMemTotal: 16435972 kBMemFree: 142484 kBBuffers: 189632 kBCached: 15413188 kBSwapCached: 0 kBActive: 1095596 kBInactive: 15032400 kBHighTotal: 0 kBHighFree: 0 kBLowTotal: 16435972 kBLowFree: 142484 kBSwapTotal: 50331604 kBSwapFree: 50331604 kBDirty: 48 kBWriteback: 0 kBAnonPages: 525148 kBMapped: 31580 kBSlab: 103152 kBPageTables: 8840 kBNFS_Unstable: 0 kBBounce: 0 kBCommitLimit: 58549588 kBCommitted_AS: 1138116 kBVmallocTotal: 34359738367 kBVmallocUsed: 287644 kBVmallocChunk: 34359450359 kBHugePages_Total: 0HugePages_Free: 0HugePages_Rsvd: 0Hugepagesize: 2048 kBtop - 10:05:02 up 7 days, 17:36, 2 users, load average: 0.01, 0.03, 0.00Tasks: 165 total, 1 running, 164 sleeping, 0 stopped, 0 zombieCpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%stMem: 16435972k total, 16293488k used, 142484k free, 189636k buffersSwap: 50331604k total, 0k used, 50331604k free, 15413352k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 919 root 10 -5 0 0 0 S 0.3 0.0 0:38.53 kjournald 1 root 15 0 10368 684 572 S 0.0 0.0 0:00.75 init 2 root RT -5 0 0 0 S 0.0 0.0 0:00.58 migration/0 3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0 4 root RT -5 0 0 0 S 0.0 0.0 0:00.72 migration/1 5 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/1 6 root RT -5 0 0 0 S 0.0 0.0 0:00.43 migration/2 7 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/2 8 root RT -5 0 0 0 S 0.0 0.0 0:02.25 migration/3 9 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/3 10 root RT -5 0 0 0 S 0.0 0.0 0:00.21 migration/4 11 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/4 12 root RT -5 0 0 0 S 0.0 0.0 0:00.83 migration/5 13 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/5 14 root RT -5 0 0 0 S 0.0 0.0 0:00.40 migration/6 15 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/6 16 root RT -5 0 0 0 S 0.0 0.0 0:00.32 migration/7 17 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/7 18 root 10 -5 0 0 0 S 0.0 0.0 0:00.21 events/0 19 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/1 20 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/2 21 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/3 22 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/4 23 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/5 24 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/6 25 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/7 26 root 10 -5 0 0 0 S 0.0 0.0 0:00.66 khelper Advertisement
Answer
i think your system is problem. Can you reboot system and check again.
For my system:
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[root@dhcp-10-38-13-122 ~]# cat /proc/meminfoMemTotal: 8115536 kBMemFree: 7611020 kBBuffers: 0 kBCached: 77544 kBSwapCached: 0 kBActive: 172188 kBInactive: 69860 kBActive(anon): 164632 kBInactive(anon): 344 kBActive(file): 7556 kBInactive(file): 69516 kBUnevictable: 0 kBMlocked: 0 kBSwapTotal: 0 kBSwapFree: 0 kBDirty: 0 kBWriteback: 0 kBAnonPages: 164764 kBMapped: 4996 kBShmem: 472 kBSlab: 16004 kBSReclaimable: 5148 kBSUnreclaim: 10856 kBKernelStack: 3120 kBPageTables: 644 kBNFS_Unstable: 0 kBBounce: 0 kBWritebackTmp: 0 kBCommitLimit: 4057768 kBCommitted_AS: 701412 kBVmallocTotal: 251658176 kBVmallocUsed: 34712 kBVmallocChunk: 251554396 kBAnonHugePages: 159744 kBHugePages_Total: 0HugePages_Free: 0HugePages_Rsvd: 0HugePages_Surp: 0Hugepagesize: 2048 kB[root@dhcp-10-38-13-122 ~]# free -t -m total used free shared buff/cache availableMem: 7925 401 7432 0 91 7417Swap: 0 0 0Total: 7925 401 7432[root@dhcp-10-38-13-122 ~]#Regards,
HuyLe