[lkml]   [2010]   [Mar]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: 2.6.33 problems
Le mardi 02 mars 2010 à 14:42 -0800, Stephen Hemminger a écrit :

> The SNMP MIB stuff does allocate a disproportionately large amount of percpu
> data. Looks like 2 tables per MIB.

But did this percpu usage grew with 2.6.33 ?

In my understanding, ipv6 always wanted a lot of percpu data for its
MIBS (including per device MIBS), the big increase occurred with commit
from David L Stevens, when RFC 4293 was implemented.
On IPV6, each net device needed 4096/8192 additional bytes of memory per
possible cpu.

An attempt to reduce SNMP mibs by 50% was attempted one ago, but not
completed. I'll try to find some time to resurrect the patch.

[RFC] percpu: convert SNMP mibs to new infra

(use one single table, for both user/bh contexts on x86)

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2010-03-03 00:33    [W:0.201 / U:0.028 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site