| commit | 6fb70fd1b57707a5c7b9fb167b7790b2cba13f04 | |
| author | Ben Hutchings <bhutchings@solarflare.com> | |
| Fri, 20 Mar 2009 13:30:37 +0000 (20 13:30 +0000) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Sun, 22 Mar 2009 02:06:58 +0000 (21 19:06 -0700) | ||
| tree | 311192bd4de07e1da571f1a6ac6a3ad123ab3f50 | treesnapshot (tar.gz zip) |
| parent | 85451a951b9511605475fadcc0a8d3aeccefded8 | commitdiff |
sfc: Implement adaptive IRQ moderation
Calculate a score for each 1000 IRQs:
- TX completions are worth 1 point
- RX completions are worth 4 if merged using LRO or 2 otherwise
Reduce moderation if the score is less than 10000, down to a minimum
of 5 us. Increase moderation if the score is more than 20000, up to
the specified maximum.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Calculate a score for each 1000 IRQs:
- TX completions are worth 1 point
- RX completions are worth 4 if merged using LRO or 2 otherwise
Reduce moderation if the score is less than 10000, down to a minimum
of 5 us. Increase moderation if the score is more than 20000, up to
the specified maximum.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>