From: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
To: netdev@oss.sgi.com
Cc: Kernel mailing list <linux-kernel@vger.kernel.org>
Subject: tuning linux for high network performance?
Date: Wed, 23 Oct 2002 12:18:18 +0200 [thread overview]
Message-ID: <200210231218.18733.roy@karlsbakk.net> (raw)
hi
I've got this video server serving video for VoD. problem is the P4 1.8 seems
to be maxed out by a few system calls. The below output is for ~50 clients
streaming at ~4.5Mbps. if trying to increase this to ~70, the CPU maxes out.
Does anyone have an idea?
bash-2.05# readprofile | sort -rn +2 | head -30
154203 default_idle 2409.4219
212723 csum_partial_copy_generic 916.9095
100164 handle_IRQ_event 695.5833
24979 system_call 390.2969
37300 e1000_intr 388.5417
119699 ide_intr 340.0540
30598 skb_release_data 273.1964
40740 do_softirq 195.8654
131818 do_wp_page 164.7725
9935 fget 155.2344
24747 kfree 154.6687
10911 del_timer 113.6562
11683 ip_conntrack_find_get 91.2734
4120 sock_poll 85.8333
9357 ip_ct_find_proto 83.5446
5194 sock_wfree 81.1562
4929 add_wait_queue 77.0156
8361 flush_tlb_page 74.6518
4571 remove_wait_queue 71.4219
2191 __brelse 68.4688
29477 skb_clone 68.2338
8562 do_gettimeofday 59.4583
5673 process_timeout 59.0938
11097 tcp_v4_send_check 57.7969
6124 kfree_skbmem 54.6786
17115 tcp_poll 53.4844
21130 nf_hook_slow 52.8250
8299 ip_ct_refresh 51.8687
15429 __kfree_skb 50.7533
1059 lru_cache_del 46.0435
roy
--
Roy Sigurd Karlsbakk, Datavaktmester
ProntoTV AS - http://www.pronto.tv/
Tel: +47 9801 3356
Computers are like air conditioners.
They stop working when you open Windows.
next reply other threads:[~2002-10-23 10:18 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-23 10:18 Roy Sigurd Karlsbakk [this message]
2002-10-23 11:06 ` [RESEND] tuning linux for high network performance? Roy Sigurd Karlsbakk
2002-10-23 13:01 ` bert hubert
2002-10-23 13:21 ` David S. Miller
2002-10-23 13:42 ` Roy Sigurd Karlsbakk
2002-10-23 17:01 ` bert hubert
2002-10-23 17:10 ` Ben Greear
2002-10-23 17:11 ` Richard B. Johnson
2002-10-23 17:12 ` Nivedita Singhvi
2002-10-23 17:56 ` Richard B. Johnson
2002-10-23 18:07 ` Nivedita Singhvi
2002-10-23 18:30 ` Richard B. Johnson
2002-10-24 4:11 ` David S. Miller
2002-10-24 9:37 ` Karen Shaeffer
2002-10-24 10:30 ` sendfile64() anyone? (was [RESEND] tuning linux for high network performance?) Roy Sigurd Karlsbakk
2002-10-24 10:47 ` David S. Miller
2002-10-24 11:07 ` Roy Sigurd Karlsbakk
2002-10-23 13:41 ` [RESEND] tuning linux for high network performance? Roy Sigurd Karlsbakk
2002-10-23 14:59 ` Nivedita Singhvi
2002-10-23 15:26 ` O_DIRECT sockets? (was [RESEND] tuning linux for high network performance?) Roy Sigurd Karlsbakk
2002-10-23 16:34 ` Nivedita Singhvi
2002-10-24 10:14 ` Roy Sigurd Karlsbakk
2002-10-24 10:46 ` David S. Miller
2002-10-23 18:01 ` [RESEND] tuning linux for high network performance? Denis Vlasenko
2002-10-23 13:36 ` Roy Sigurd Karlsbakk
2002-10-24 16:22 ` Denis Vlasenko
2002-10-24 11:50 ` Russell King
2002-10-24 12:42 ` bert hubert
2002-10-24 17:41 ` Denis Vlasenko
2002-10-25 11:36 ` Csum and csum copyroutines benchmark Denis Vlasenko
2002-10-25 7:48 ` Momchil Velikov
2002-10-25 13:59 ` Denis Vlasenko
2002-10-25 9:47 ` Momchil Velikov
2002-10-25 10:19 ` Alan Cox
2002-10-25 16:00 ` Denis Vlasenko
2002-10-23 14:52 ` [RESEND] tuning linux for high network performance? Nivedita Singhvi
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