From: Simon Kirby <sim@netnation.com>
To: Robert Olsson <Robert.Olsson@data.slu.se>
Cc: Eric Dumazet <dada1@cosmosbay.com>, netdev@oss.sgi.com
Subject: Re: Route cache performance
Date: Tue, 23 Aug 2005 17:01:58 -0700 [thread overview]
Message-ID: <20050824000158.GA8137@netnation.com> (raw)
In-Reply-To: <17163.32645.202453.145416@robur.slu.se>
On Tue, Aug 23, 2005 at 09:56:53PM +0200, Robert Olsson wrote:
> Yes your GC does not work at all in your 2.6 setups...Why?
Good question. :)
> echo 50 > /proc/sys/net/ipv4/route/gc_min_interval_ms
The output looks exactly the same with gc_min_interval_ms set to 50.
If I set it to 0, it does change a little but _still_ overflows:
rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|
entries| in_hit|in_slow_|gc_total|gc_ignor|gc_goal_|gc_dst_o|in_hlist|
| | tot| | ed| miss| verflow| _search|
3| 3| 1| 1| 1| 0| 0| 0|
4| 11| 5| 0| 0| 0| 0| 0|
5| 5| 2| 0| 0| 0| 0| 0|
23615| 1| 24002| 15812| 0| 0| 0| 11470|
68692| 0| 46780| 46777| 0| 4687| 0| 4492|
86046| 0| 18763| 18754| 0| 18754| 0| 119|
94884| 0| 9540| 9538| 0| 9538| 0| 47|
104901| 0| 10819| 10817| 0| 10817| 0| 61|
114919| 0| 10817| 10818| 0| 10818| 0| 68|
127424| 0| 13512| 13505| 0| 13505| 0| 74|
131062| 0| 15113| 15106| 0| 15106| 10368| 28|
131062| 0| 12503| 12482| 0| 12482| 11582| 9|
131062| 0| 8146| 8130| 0| 8130| 7530| 5|
131062| 0| 8204| 8194| 0| 8194| 7594| 2|
131062| 0| 8132| 8131| 0| 8131| 7531| 5|
131062| 0| 8196| 8195| 0| 8195| 7595| 4|
131062| 0| 8130| 8129| 0| 8129| 7529| 8|
Something is definitely broken here. Are the interrupts (or in this
case, NAPI) able to starve the gc somehow?
Simon-
next prev parent reply other threads:[~2005-08-24 0:01 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-15 21:38 Route cache performance Simon Kirby
2005-08-16 2:23 ` Eric Dumazet
2005-08-23 19:08 ` Simon Kirby
2005-08-23 19:56 ` Robert Olsson
2005-08-24 0:01 ` Simon Kirby [this message]
2005-08-24 3:50 ` Robert Olsson
2005-08-25 18:11 ` Simon Kirby
2005-08-25 20:05 ` Alexey Kuznetsov
2005-08-25 21:22 ` Simon Kirby
2005-08-26 11:55 ` Alexey Kuznetsov
2005-08-26 19:49 ` Robert Olsson
2005-09-06 23:57 ` Simon Kirby
2005-09-07 1:19 ` Alexey Kuznetsov
2005-09-07 15:03 ` Robert Olsson
2005-09-07 16:55 ` Simon Kirby
2005-09-07 17:21 ` Robert Olsson
2005-09-07 14:45 ` Robert Olsson
2005-09-07 16:28 ` Simon Kirby
2005-09-07 16:49 ` Robert Olsson
2005-09-07 16:57 ` Simon Kirby
2005-09-07 19:59 ` Alexey Kuznetsov
2005-09-13 22:14 ` Simon Kirby
2005-09-14 8:04 ` Robert Olsson
2005-09-17 0:28 ` Simon Kirby
2005-09-17 9:04 ` Martin Josefsson
2005-09-17 15:17 ` jamal
2005-09-15 21:04 ` Alexey Kuznetsov
2005-09-15 21:30 ` Robert Olsson
2005-09-15 22:21 ` Alexey Kuznetsov
2005-09-16 12:18 ` Robert Olsson
2005-09-16 19:04 ` Alexey Kuznetsov
2005-09-16 19:22 ` Ben Greear
2005-09-16 19:57 ` Robert Olsson
-- strict thread matches above, loose matches on Subject: below --
2005-08-24 16:06 Simon Kirby
[not found] <20050301220743.GF2554@netnation.com>
[not found] ` <16940.9990.975632.115834@robur.slu.se>
2005-03-09 1:45 ` Simon Kirby
2005-03-09 12:05 ` Robert Olsson
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