Messages in this thread | | | Date | Wed, 26 Jan 2005 10:52:42 -0500 | From | Parag Warudkar <> | Subject | Re: Memory leak in 2.6.11-rc1? |
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I am running 2.6.11-rc2+ fix for the pipe related leak by Linus. I am currently running a QT+KDE compile with distcc on two machines. I am running these machines for around 11 hours now and swap seems to be growing steadily on the -rc2 box - it went to ~260kb after 10hrs, after which I ran swapoff. Now after couple hours it is at 40kb. The other machine is Knoppix 2.4.26 kernel with lesser memory and it hasn't run into swap at all.
On the -rc2 machine, however, I don't feel anything is sluggish yet. But I think if I leave it running long enough it might run out of memory.
I don't know if this is perfectly normal given the differences between 2.4.x and 2.6.x VM. I will keep it running and under load for a while and report any interesting stuff.
Here is /proc/meminfo on the rc2 box as of now - root@localhost paragw]# cat /proc/meminfo MemTotal: 775012 kB MemFree: 55260 kB Buffers: 72732 kB Cached: 371956 kB SwapCached: 40 kB Active: 489508 kB Inactive: 182360 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 775012 kB LowFree: 55260 kB SwapTotal: 787176 kB SwapFree: 787136 kB Dirty: 2936 kB Writeback: 0 kB Mapped: 259024 kB Slab: 32288 kB CommitLimit: 1174680 kB Committed_AS: 450692 kB PageTables: 3072 kB VmallocTotal: 253876 kB VmallocUsed: 25996 kB VmallocChunk: 226736 kB HugePages_Total: 0 HugePages_Free: 0 Hugepagesize: 4096 kB
Parag Andrew Morton wrote:
>Jens Axboe <axboe@suse.de> wrote: > > >>This is my current situtation: >> >>... >> axboe@wiggum:/home/axboe $ cat /proc/meminfo >> MemTotal: 1024992 kB >> MemFree: 9768 kB >> Buffers: 76664 kB >> Cached: 328024 kB >> SwapCached: 0 kB >> Active: 534956 kB >> Inactive: 224060 kB >> HighTotal: 0 kB >> HighFree: 0 kB >> LowTotal: 1024992 kB >> LowFree: 9768 kB >> SwapTotal: 0 kB >> SwapFree: 0 kB >> Dirty: 1400 kB >> Writeback: 0 kB >> Mapped: 464232 kB >> Slab: 225864 kB >> CommitLimit: 512496 kB >> Committed_AS: 773844 kB >> PageTables: 8004 kB >> VmallocTotal: 34359738367 kB >> VmallocUsed: 644 kB >> VmallocChunk: 34359737167 kB >> HugePages_Total: 0 >> HugePages_Free: 0 >> Hugepagesize: 2048 kB >> >> > >OK. There's rather a lot of anonymous memory there - 700M on the LRU, 300M >pageache, 400M anon, 200M of slab. You need some swapspace ;) > >What are the symptoms? Slow to load applications? Lots of paging? Poor >I/O speeds? >- >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html >Please read the FAQ at http://www.tux.org/lkml/ > > >
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