From: Stefan Hajnoczi <stefanha@redhat.com>
To: qemu-devel@nongnu.org
Cc: Nir Soffer <nsoffer@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
qemu-stable@nongnu.org, Stefan Hajnoczi <stefanha@redhat.com>
Subject: [PATCH 0/6] virtio-scsi: fix 100% CPU consumption in IOThread
Date: Wed, 27 Apr 2022 15:35:35 +0100 [thread overview]
Message-ID: <20220427143541.119567-1-stefanha@redhat.com> (raw)
Nir Soffer reported that virtio-scsi,iothread=... consumes 100% CPU in QEMU
7.0. This patch series addresses two bugs in hw/scsi/virtio-scsi.c (see patches
1 & 2) and follows up with code cleanups.
Stefan Hajnoczi (6):
virtio-scsi: fix ctrl and event handler functions in dataplane mode
virtio-scsi: don't waste CPU polling the event virtqueue
virtio-scsi: clean up virtio_scsi_handle_event_vq()
virtio-scsi: clean up virtio_scsi_handle_ctrl_vq()
virtio-scsi: clean up virtio_scsi_handle_cmd_vq()
virtio-scsi: move request-related items from .h to .c
include/hw/virtio/virtio-scsi.h | 43 --------------
include/hw/virtio/virtio.h | 1 +
hw/scsi/virtio-scsi-dataplane.c | 2 +-
hw/scsi/virtio-scsi.c | 101 ++++++++++++++++++++++----------
hw/virtio/virtio.c | 13 ++++
5 files changed, 86 insertions(+), 74 deletions(-)
--
2.35.1
next reply other threads:[~2022-04-27 14:37 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-27 14:35 Stefan Hajnoczi [this message]
2022-04-27 14:35 ` [PATCH 1/6] virtio-scsi: fix ctrl and event handler functions in dataplane mode Stefan Hajnoczi
2022-04-27 19:47 ` Michael Tokarev
2022-04-28 9:05 ` Stefan Hajnoczi
2022-04-28 23:18 ` Paolo Bonzini
2022-04-27 14:35 ` [PATCH 2/6] virtio-scsi: don't waste CPU polling the event virtqueue Stefan Hajnoczi
2022-04-27 20:12 ` Nir Soffer
2022-04-28 9:05 ` Stefan Hajnoczi
2022-04-28 23:17 ` Paolo Bonzini
2022-04-30 5:52 ` Stefan Hajnoczi
2022-04-27 14:35 ` [PATCH 3/6] virtio-scsi: clean up virtio_scsi_handle_event_vq() Stefan Hajnoczi
2022-04-28 23:17 ` Paolo Bonzini
2022-04-27 14:35 ` [PATCH 4/6] virtio-scsi: clean up virtio_scsi_handle_ctrl_vq() Stefan Hajnoczi
2022-04-28 23:17 ` Paolo Bonzini
2022-04-27 14:35 ` [PATCH 5/6] virtio-scsi: clean up virtio_scsi_handle_cmd_vq() Stefan Hajnoczi
2022-04-28 23:17 ` Paolo Bonzini
2022-04-27 14:35 ` [PATCH 6/6] virtio-scsi: move request-related items from .h to .c Stefan Hajnoczi
2022-04-28 23:17 ` Paolo Bonzini
2022-05-09 9:45 ` [PATCH 0/6] virtio-scsi: fix 100% CPU consumption in IOThread Stefan Hajnoczi
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