> > I'd love to find a better place to ask Linux ( as opposed to bbox ) > questions - but everyone is so helpful here I'm taking advantage. > > If anyone knows of a helpful, friendly Linux mailist which I should be > using instead, please do point me to it! > > ----------------------------------------------- > I have an embedded box with no swap file which is running about 40 > processes. I'm trying to work out how close to the limit of my memory I > am. > > Here is what I see > initial after > value 12 hours > soon after > power-on > -------- -------- > MemTotal: 30184 kB 30184 kB > MemFree: 10912 kB 2048 kB > Buffers: 0 kB 0 kB > Cached: 6184 kB 14580 kB > SwapCached: 0 kB 0 kB > Active: 10392 kB 11320 kB > Inactive: 3620 kB 11400 kB > SwapTotal: 0 kB 0 kB > SwapFree: 0 kB 0 kB > Dirty: 0 kB 0 kB > Writeback: 0 kB 0 kB > AnonPages: 7848 kB 8160 kB > Mapped: 2308 kB 2324 kB > Slab: 3356 kB 3348 kB > SReclaimable: 1112 kB 944 kB > SUnreclaim: 2244 kB 2404 kB > PageTables: 384 kB 396 kB > Quicklists: 36 kB 64 kB > NFS_Unstable: 0 kB 0 kB > Bounce: 0 kB 0 kB > WritebackTmp: 0 kB 0 kB > CommitLimit: 15092 kB 15092 kB > Committed_AS: 13780 kB 15068 kB > VmallocTotal: 507904 kB 507904 kB > VmallocUsed: 536 kB 536 kB > VmallocChunk: 507344 kB 507344 kB > > I see the memfree has dropped from 11 to 2 megabytes - but I also see > "cached"/"inactive" has taken up the slack. > > So the question is - how close is this box to the OOM of doom - is the > inactive cached memory available for re-use if it's needed, or am I > really 2M from the drop? > > Put it another way - what numbers above do I need to add/subtract to get > a useful value for "available memory"
free is supposed to give you that but my BB free (v1.14.2) appears buggy, how is yours? I think that Buffers: and Cached: counts as free memory as these are reclaimed when needed elsewhere _______________________________________________ busybox mailing list [email protected] http://lists.busybox.net/mailman/listinfo/busybox
