Messages in this thread |  | | From | kuznet@ms2 ... | Subject | Re: 2.4.1 errors under heavy network load | Date | Mon, 12 Feb 2001 23:31:17 +0300 (MSK) |
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Hello!
> Then we did the following tuning attempt:
Please, cat /proc/net/tcp and /proc/net/sockstat and send result to me (gzipped), together with /proc/sys/net/ipv4/tcp_* values
> echo "20480" > /proc/sys/net/ipv4/tcp_max_orphans
Also, you want to increase memory allowed for TCP echo "X/2 X/2 X" > /proc/sys/net/ipv4/tcp_mem where X is memory in pages.
20480 is a crazy number. Valid applications cannot leave so much of orphans. Do you understand that this is more than 80MB of wasted memory?
> echo "1" > tcp_orphan_retries
Bad idea. Default value is the lowest possible.
> echo 30 > /proc/sys/net/ipv4/tcp_keepalive_time > echo 2 > /proc/sys/net/ipv4/tcp_keepalive_probes
Bad idea.
> Oh btw. we got what I think is a "bad one" too... > Feb 12 16:42:35 mcquack kernel: KERNEL: assertion (tp->lost_out == 0) failed > at tcp_input.c(1202):tcp_remove_reno_sacks
Absolutely harmless. This is debugging message.
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