| To: | netdev@xxxxxxxxxxx |
|---|---|
| Subject: | Still bug-hunting |
| From: | Christian Schmid <webmaster@xxxxxxxxxxxxxx> |
| Date: | Sat, 05 Mar 2005 18:57:00 +0100 |
| Sender: | netdev-bounce@xxxxxxxxxxx |
| User-agent: | Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8a3) Gecko/20040817 |
Hello.I have found out that the slow-down issue with many sockets is a memory problem now. Not that I do not have enough but the vm isnt able to reclaim fast-enough. Problem temporarily solved by setting lower_zone_protection to 1024. Still I wonder why /proc/net/sockstat shows this: sockets: used 1637 TCP: inuse 1761 orphan 179 tw 3743 alloc 1761 mem 54224The send-buffer is set to 128 and the rcv-buffer to 16 so theoretically it should be 1637*144=235728 so I assume the buffers are allocated dynamically when they are really needed... I suppose the slow-down wouldnt appear if the buffers are allocated statically. Is there any way to check this? Chris |
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