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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-01-20 00:14:58 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-01-20 16:59:16 -0800 |
| commit | 817fb15dfd988d8dda916ee04fa506f0c466b9d6 (patch) | |
| tree | 9c857324cff66804949994cccb6050ef6b6c2aea /block | |
| parent | 3fbd8758b027995b677046dae46f9b41ea88c88f (diff) | |
| download | linux-stable-817fb15dfd988d8dda916ee04fa506f0c466b9d6.tar.gz linux-stable-817fb15dfd988d8dda916ee04fa506f0c466b9d6.tar.bz2 linux-stable-817fb15dfd988d8dda916ee04fa506f0c466b9d6.zip | |
net_sched: sfq: allow divisor to be a parameter
SFQ currently uses a 1024 slots hash table, and its internal structure
(sfq_sched_data) allocation needs order-1 page on x86_64
Allow tc command to specify a divisor value (hash table size), between 1
and 65536.
If no value is provided, assume the 1024 default size.
This allows admins to setup smaller (or bigger) SFQ for specific needs.
This also brings back sfq_sched_data allocations to order-0 ones, saving
3KB per SFQ qdisc.
Jesper uses ~55.000 SFQ in one machine, this patch should free 165 MB of
memory.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Patrick McHardy <kaber@trash.net>
CC: Jesper Dangaard Brouer <hawk@diku.dk>
CC: Jarek Poplawski <jarkao2@gmail.com>
CC: Jamal Hadi Salim <hadi@cyberus.ca>
CC: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions