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| author | Richard Henderson <richard.henderson@linaro.org> | 2022-05-09 11:07:04 -0700 |
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| committer | Richard Henderson <richard.henderson@linaro.org> | 2022-05-09 11:07:04 -0700 |
| commit | 178bacb66d98d9ee7a702b9f2a4dfcd88b72a9ab (patch) | |
| tree | ab363c70e86292f400bea30bcf207eac414d80be /util/async.c | |
| parent | b0c3c60366ed43eb1569eb18c10df6eb993534c3 (diff) | |
| parent | 3dc584abeef0e1277c2de8c1c1974cb49444eb0a (diff) | |
| download | focaccia-qemu-178bacb66d98d9ee7a702b9f2a4dfcd88b72a9ab.tar.gz focaccia-qemu-178bacb66d98d9ee7a702b9f2a4dfcd88b72a9ab.zip | |
Merge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into staging
Pull request - Add new thread-pool-min/thread-pool-max parameters to control the thread pool used for async I/O. - Fix virtio-scsi IOThread 100% CPU consumption QEMU 7.0 regression. # -----BEGIN PGP SIGNATURE----- # # iQEzBAABCAAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAmJ5DqgACgkQnKSrs4Gr # c8iAqAf/WEJzEso0Hu3UUYJi2lAXpLxWPjoNBlPdQlKIJ/I0zQIF0P7GeCifF+0l # iMjgBv0ofyAuV47gaTJlVrAR75+hJ/IXNDhnu3UuvNWfVOqvksgw6kuHkMo9A2hC # 4tIHEU9J8jbQSSdQTaZR8Zj4FX1/zcxMBAXT3YO3De6zo78RatBTuNP4dsZzt8bI # Qs1a4A0p2ScNXK8EcF4QwAWfoxu9OPPzN52DBCNxcIcnn0SUab4NbDxzpRV4ZhDP # 08WoafI5O+2Kb36QysJN01LqajHrClG/fozrPzBLq5aZUK3xewJGB1hEdGTLkkmz # NJNBg5Ldszwj4PDZ1dFU3/03aigb3g== # =t5eR # -----END PGP SIGNATURE----- # gpg: Signature made Mon 09 May 2022 05:52:56 AM PDT # gpg: using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full] # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" [full] * tag 'block-pull-request' of https://gitlab.com/stefanha/qemu: virtio-scsi: move request-related items from .h to .c virtio-scsi: clean up virtio_scsi_handle_cmd_vq() virtio-scsi: clean up virtio_scsi_handle_ctrl_vq() virtio-scsi: clean up virtio_scsi_handle_event_vq() virtio-scsi: don't waste CPU polling the event virtqueue virtio-scsi: fix ctrl and event handler functions in dataplane mode util/event-loop-base: Introduce options to set the thread pool size util/main-loop: Introduce the main loop into QOM Introduce event-loop-base abstract class Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'util/async.c')
| -rw-r--r-- | util/async.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/util/async.c b/util/async.c index 2ea1172f3e..554ba70cca 100644 --- a/util/async.c +++ b/util/async.c @@ -563,6 +563,9 @@ AioContext *aio_context_new(Error **errp) ctx->aio_max_batch = 0; + ctx->thread_pool_min = 0; + ctx->thread_pool_max = THREAD_POOL_MAX_THREADS_DEFAULT; + return ctx; fail: g_source_destroy(&ctx->source); @@ -696,3 +699,20 @@ void qemu_set_current_aio_context(AioContext *ctx) assert(!get_my_aiocontext()); set_my_aiocontext(ctx); } + +void aio_context_set_thread_pool_params(AioContext *ctx, int64_t min, + int64_t max, Error **errp) +{ + + if (min > max || !max || min > INT_MAX || max > INT_MAX) { + error_setg(errp, "bad thread-pool-min/thread-pool-max values"); + return; + } + + ctx->thread_pool_min = min; + ctx->thread_pool_max = max; + + if (ctx->thread_pool) { + thread_pool_update_params(ctx->thread_pool, ctx); + } +} |