SUNRPC: Reduce thread wake-up rate when receiving large RPC messages

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With large NFS WRITE requests on TCP, I measured 5-10 thread wake-
ups to receive each request. This is because the socket layer
calls ->sk_data_ready() frequently, and each call triggers a
thread wake-up. Each recvmsg() seems to pull in less than 100KB.

Have the socket layer hold ->sk_data_ready() calls until the full
incoming message has arrived to reduce the wake-up rate.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

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Chuck Lever 2023-07-19 14:31:29 -04:00

parent 89d2d9fbea

commit 2b877fc53e

1 changed files with 11 additions and 1 deletions

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net/sunrpc/svcsock.c

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