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| author | Jens Axboe <axboe@kernel.dk> | 2024-02-02 19:39:01 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-02-02 19:39:01 -0700 |
| commit | c0cb6c705a7bb0bc2dfa481e6d5b28fa5c781937 (patch) | |
| tree | f4e77454d6590f53cf94dbf3bf943a8a3e082831 | |
| parent | 4e2e46abd2624e4ee874f44bb6b628f3d31a056b (diff) | |
| download | liburing-napi.tar.gz | |
examples/napi-busy-poll-{client,server}: cleanups and docnapi
Add example usage, and various little code cleanups.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | examples/napi-busy-poll-client.c | 18 | ||||
| -rw-r--r-- | examples/napi-busy-poll-server.c | 15 |
2 files changed, 29 insertions, 4 deletions
diff --git a/examples/napi-busy-poll-client.c b/examples/napi-busy-poll-client.c index 6fa13bf2..bf8cabe1 100644 --- a/examples/napi-busy-poll-client.c +++ b/examples/napi-busy-poll-client.c @@ -1,3 +1,17 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Simple ping/pong client which can use the io_uring NAPI support. + * + * Needs to be run as root because it sets SCHED_FIFO scheduling class, + * but will work without that. + * + * Example: + * + * sudo examples/napi-busy-poll-client -a 192.168.2.2 -n100000 -p4444 \ + * -b -t10 -u + * + * send and receive 100k packets, using NAPI. + */ #include <ctype.h> #include <errno.h> #include <float.h> @@ -180,7 +194,6 @@ static void sendPing(struct ctx *ctx) struct io_uring_sqe *sqe = io_uring_get_sqe(&ctx->ring); clock_gettime(CLOCK_REALTIME, (struct timespec *)ctx->buffer); - io_uring_prep_send(sqe, ctx->sockfd, ctx->buffer, sizeof(struct timespec), 0); sqe->user_data = encodeUserData(IOURING_SEND, ctx->sockfd); } @@ -479,10 +492,9 @@ out: if (ret) fprintf(stderr, "io_uring_unregister_napi: %d\n", ret); } - io_uring_queue_exit(&ctx.ring); + io_uring_queue_exit(&ctx.ring); free(ctx.rtt); close(ctx.sockfd); - return 0; } diff --git a/examples/napi-busy-poll-server.c b/examples/napi-busy-poll-server.c index ef524479..a1bd17c5 100644 --- a/examples/napi-busy-poll-server.c +++ b/examples/napi-busy-poll-server.c @@ -1,3 +1,17 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Simple ping/pong backend which can use the io_uring NAPI support. + * + * Needs to be run as root because it sets SCHED_FIFO scheduling class, + * but will work without that. + * + * Example: + * + * sudo examples/napi-busy-poll-server -l -a 192.168.2.2 -n100000 \ + * -p4444 -t10 -b -u + * + * will respond to 100k packages, using NAPI. + */ #include <ctype.h> #include <errno.h> #include <getopt.h> @@ -375,7 +389,6 @@ int main(int argc, char *argv[]) else tsPtr = NULL; - // Use realtime scheduler. setProcessScheduler(); |