RAM - memory
Issue #598
closed
I copied all data to another computer after migration it seems everything is working well
original computer has 2GB RAM new computer has 4GB RAM at administratrion admin/server/ is showing 2GB total memory on computer which has 4GB RAM
will this mailserver using all available 4GB memory or just 2GB which was on previous original compuer? should I change something somewhere?
Comments (3)
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repo owner
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/admin/server/ Available memory: 2GB Used: 1GB
sudo cat /proc/meminfo MemTotal: 3911172 kB MemFree: 544352 kB MemAvailable: 2264916 kB Buffers: 572076 kB Cached: 1250324 kB SwapCached: 15348 kB Active: 2219452 kB Inactive: 803788 kB Active(anon): 967196 kB Inactive(anon): 258980 kB Active(file): 1252256 kB Inactive(file): 544808 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 3910652 kB SwapFree: 3842556 kB Dirty: 224 kB Writeback: 0 kB AnonPages: 1185592 kB Mapped: 153012 kB Shmem: 26144 kB Slab: 278512 kB SReclaimable: 210360 kB SUnreclaim: 68152 kB KernelStack: 5072 kB PageTables: 14320 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 5866236 kB Committed_AS: 2662952 kB VmallocTotal: 34359738367 kB VmallocUsed: 0 kB VmallocChunk: 0 kB HardwareCorrupted: 0 kB AnonHugePages: 0 kB ShmemHugePages: 0 kB ShmemPmdMapped: 0 kB CmaTotal: 0 kB CmaFree: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 166332 kB DirectMap2M: 3899392 kB
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repo owner
- changed status to closed
It uses whole 4GB...
It is just "MemAvailable: 2264916 kB", Used value = total - free - buffers - cached
It is little complicated to calculate exact stats since memory can be full of data but still available for other processes
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We just parse /proc/meminfo, namely MemTotal, MemFree, Buffers, Cached, MemAvailable
Please can you paste me content of /proc/meminfo?