diff options
| author | Jens Axboe <axboe@kernel.dk> | 2022-07-07 23:30:09 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-07-25 03:39:17 +0300 |
| commit | 43e0bbbd0b0e30d232fd8e9e908125b5c49a9fbc (patch) | |
| tree | 36990dc646e88f2bc176bb4873fa783b09ac9c69 /io_uring/io_uring.c | |
| parent | 9731bc9855dc169f27433fef3c4d0ff3496c512d (diff) | |
| download | linux-43e0bbbd0b0e30d232fd8e9e908125b5c49a9fbc.tar.xz | |
io_uring: add netmsg cache
For recvmsg/sendmsg, if they don't complete inline, we currently need
to allocate a struct io_async_msghdr for each request. This is a
somewhat large struct.
Hook up sendmsg/recvmsg to use the io_alloc_cache. This reduces the
alloc + free overhead considerably, yielding 4-5% of extra performance
running netbench.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/io_uring.c')
| -rw-r--r-- | io_uring/io_uring.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index c9c23e459766..f697ca4e8f55 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -89,6 +89,7 @@ #include "kbuf.h" #include "rsrc.h" #include "cancel.h" +#include "net.h" #include "timeout.h" #include "poll.h" @@ -297,6 +298,7 @@ static __cold struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p) INIT_LIST_HEAD(&ctx->cq_overflow_list); INIT_LIST_HEAD(&ctx->io_buffers_cache); io_alloc_cache_init(&ctx->apoll_cache); + io_alloc_cache_init(&ctx->netmsg_cache); init_completion(&ctx->ref_comp); xa_init_flags(&ctx->personalities, XA_FLAGS_ALLOC1); mutex_init(&ctx->uring_lock); @@ -2469,6 +2471,7 @@ static __cold void io_ring_ctx_free(struct io_ring_ctx *ctx) __io_cqring_overflow_flush(ctx, true); io_eventfd_unregister(ctx); io_alloc_cache_free(&ctx->apoll_cache, io_apoll_cache_free); + io_alloc_cache_free(&ctx->netmsg_cache, io_netmsg_cache_free); mutex_unlock(&ctx->uring_lock); io_destroy_buffers(ctx); if (ctx->sq_creds) |