Revision 15f9850d3c2d46f5851a424d2990a18b5bb5ebfd authored by David S. Miller on 19 May 2005, 05:49:26 UTC, committed by David S. Miller on 19 May 2005, 05:49:26 UTC
Even though we do software interrupt mitigation via NAPI, it still helps to have some minimal hw assisted mitigation. This helps, particularly, on systems where register I/O overhead is much greater than the CPU horsepower. For example, it helps on NUMA systems. In such cases the PIO overhead to disable interrupts for NAPI accounts for the majority of the packet processing cost. The CPU is fast enough such that only a single packet is processed by each NAPI poll call. Thanks to Michael Chan for reviewing this patch. Signed-off-by: David S. Miller <davem@davemloft.net>
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File | Mode | Size |
---|---|---|
Makefile | -rw-r--r-- | 237 bytes |
compat.c | -rw-r--r-- | 17.3 KB |
compat_mq.c | -rw-r--r-- | 4.0 KB |
mqueue.c | -rw-r--r-- | 29.1 KB |
msg.c | -rw-r--r-- | 18.9 KB |
msgutil.c | -rw-r--r-- | 2.4 KB |
sem.c | -rw-r--r-- | 33.7 KB |
shm.c | -rw-r--r-- | 21.3 KB |
util.c | -rw-r--r-- | 13.2 KB |
util.h | -rw-r--r-- | 2.3 KB |
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