search for: hrtimer_start

...verything updated. Kernel : 2.6.32-358.2.1.el6.x86_64 #1 SMP My Load always shows : top - 10:30:21 up 23:09, 1 users, load average: 0.99, 0.96, 0.79 yet there is no services what-so-ever doing anything. Using PowerTOP I can see that xfsaild is causing second most wake-ups (after kernel core : hrtimer_start (tick_sched_timer) ) < Detailed C-state information is not P-states (frequencies) 3.00 Ghz 100.0% 1500 Mhz 0.0% 1125 Mhz 0.0%...

...rivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -406,10 +405,10 @@ again: virtio_debug(vdebug, "%s: before calling kick %d\n", __FUNCTION__, __LINE__); vi->svq->vq_ops->kick(vi->svq); vi->out_num = 0; - } else { - vi->stats.hrtimer_starts++; - hrtimer_start(&vi->tx_timer, ktime_set(0,500000), - HRTIMER_MODE_REL); + } else if (!hrtimer_is_queued(&vi->tx_timer)) { + vi->stats.hrtimer_starts++; + hrtimer_start(&vi->tx_timer, ktime_set(0,500000), +...

...rivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -406,10 +405,10 @@ again: virtio_debug(vdebug, "%s: before calling kick %d\n", __FUNCTION__, __LINE__); vi->svq->vq_ops->kick(vi->svq); vi->out_num = 0; - } else { - vi->stats.hrtimer_starts++; - hrtimer_start(&vi->tx_timer, ktime_set(0,500000), - HRTIMER_MODE_REL); + } else if (!hrtimer_is_queued(&vi->tx_timer)) { + vi->stats.hrtimer_starts++; + hrtimer_start(&vi->tx_timer, ktime_set(0,500000), +...

...rivers/net/virtio_net.c index 538cc37..0403d65 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -392,10 +392,10 @@ again: vi->stats.sendq_kicks++; vi->svq->vq_ops->kick(vi->svq); vi->out_num = 0; - } else { - vi->stats.hrtimer_starts++; - hrtimer_start(&vi->tx_timer, ktime_set(0,500000), - HRTIMER_MODE_REL); + } else if (!hrtimer_is_queued(&vi->tx_timer)) { + vi->stats.hrtimer_starts++; + hrtimer_start(&vi->tx_timer, ktime_set(0,500000), +...

...rivers/net/virtio_net.c index 538cc37..0403d65 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -392,10 +392,10 @@ again: vi->stats.sendq_kicks++; vi->svq->vq_ops->kick(vi->svq); vi->out_num = 0; - } else { - vi->stats.hrtimer_starts++; - hrtimer_start(&vi->tx_timer, ktime_set(0,500000), - HRTIMER_MODE_REL); + } else if (!hrtimer_is_queued(&vi->tx_timer)) { + vi->stats.hrtimer_starts++; + hrtimer_start(&vi->tx_timer, ktime_set(0,500000), +...

..._queue(dev); return NETDEV_TX_BUSY; } - vi->svq->vq_ops->kick(vi->svq); + if (++vi->out_num == vi->out_max) { + hrtimer_cancel(&vi->tx_timer); + vi->svq->vq_ops->kick(vi->svq); + vi->out_num = 0; + } else + hrtimer_start(&vi->tx_timer, ktime_set(0,500000), + HRTIMER_MODE_REL); return 0; } @@ -363,6 +398,10 @@ static int virtnet_probe(struct virtio_device *vdev) netif_napi_add(dev, &vi->napi, virtnet_poll, 16); vi->dev = dev; vi->vdev = vdev; + hrtimer_i...

..._queue(dev); return NETDEV_TX_BUSY; } - vi->svq->vq_ops->kick(vi->svq); + if (++vi->out_num == vi->out_max) { + hrtimer_cancel(&vi->tx_timer); + vi->svq->vq_ops->kick(vi->svq); + vi->out_num = 0; + } else + hrtimer_start(&vi->tx_timer, ktime_set(0,500000), + HRTIMER_MODE_REL); return 0; } @@ -363,6 +398,10 @@ static int virtnet_probe(struct virtio_device *vdev) netif_napi_add(dev, &vi->napi, virtnet_poll, 16); vi->dev = dev; vi->vdev = vdev; + hrtimer_i...

...nit_one(&sg, &vcpu_stall->pet_event, sizeof(vcpu_stall->pet_event)); > + err = virtqueue_add_outbuf(vcpu_stall->vq, &sg, 1, vcpu_stall, GFP_ATOMIC); > + if (!err) > + virtqueue_kick(vcpu_stall->vq); > + > + spin_unlock(&vcpu_stall->lock); > + > + hrtimer_start(vcpu_hrtimer, ms_to_ktime(ping_timeout_ms), > + HRTIMER_MODE_REL_PINNED); > + return err; > +} > + > +static int stop_stall_detector_cpu(unsigned int cpu) > +{ > + int err = 0; > + struct scatterlist sg; > + > + struct vcpu_stall_priv *vcpu_stall_detector = >...

The following patches are the latest update of the TSC and hrtimer patches I posted on 29/03. Rusty's original TSC patch has been resynced to the latest lguest repo, as has the hrtimer patch, which also incorporates feedback from Jeremy & Rusty: - Change clock event hrtimer to absolute time. 'now' is captured in the host during the hypercall. - Propagate -ETIME back to the

The following patches are the latest update of the TSC and hrtimer patches I posted on 29/03. Rusty's original TSC patch has been resynced to the latest lguest repo, as has the hrtimer patch, which also incorporates feedback from Jeremy & Rusty: - Change clock event hrtimer to absolute time. 'now' is captured in the host during the hypercall. - Propagate -ETIME back to the

...af7cb>] nouveau_drm_ioctl+0x5b/0xb0 [nouveau] Apr 29 22:16:06 h kernel: [ 78.636425] [<f8faf770>] ? nouveau_pmops_thaw+0x20/0x20 [nouveau] Apr 29 22:16:06 h kernel: [ 78.636425] [<c11bdf72>] do_vfs_ioctl+0x322/0x550 Apr 29 22:16:06 h kernel: [ 78.636425] [<c10c1247>] ? hrtimer_start+0x27/0x30 Apr 29 22:16:06 h kernel: [ 78.636425] [<c10c277b>] ? do_setitimer+0x26b/0x270 Apr 29 22:16:06 h kernel: [ 78.636425] [<c10c288b>] ? SyS_setitimer+0xab/0xe0 Apr 29 22:16:06 h kernel: [ 78.636425] [<c11bf7ea>] ? SyS_select+0x9a/0xd0 Apr 29 22:16:06 h kernel: [...

Hi: This is a new version of trying to enable tx interrupts for virtio-net. We used to try to avoid tx interrupts and orphan packets before transmission for virtio-net. This breaks socket accounting and can lead serveral other side effects e.g: - Several other functions which depends on socket accounting can not work correctly (e.g TCP Small Queue) - No tx completion which make BQL or

Hi: This is a new version of trying to enable tx interrupts for virtio-net. We used to try to avoid tx interrupts and orphan packets before transmission for virtio-net. This breaks socket accounting and can lead serveral other side effects e.g: - Several other functions which depends on socket accounting can not work correctly (e.g TCP Small Queue) - No tx completion which make BQL or

Hello: We used to orphan packets before transmission for virtio-net. This breaks socket accounting and can lead serveral functions won't work, e.g: - Byte Queue Limit depends on tx completion nofication to work. - Packet Generator depends on tx completion nofication for the last transmitted packet to complete. - TCP Small Queue depends on proper accounting of sk_wmem_alloc to work. This

Hello: We used to orphan packets before transmission for virtio-net. This breaks socket accounting and can lead serveral functions won't work, e.g: - Byte Queue Limit depends on tx completion nofication to work. - Packet Generator depends on tx completion nofication for the last transmitted packet to complete. - TCP Small Queue depends on proper accounting of sk_wmem_alloc to work. This

This series is based on v5.7-rc4. The patches are located at: https://github.com/davidhildenbrand/linux.git virtio-mem-v4 This is basically a resend of v3 [1], now based on v5.7-rc4 and restested. One patch was reshuffled and two ACKs I missed to add were added. The rebase did not require any modifications to patches. Details about virtio-mem can be found in the cover letter of v2 [2]. A

This series is based on latest linux-next. The patches are located at: https://github.com/davidhildenbrand/linux.git virtio-mem-v2 I now have acks for all !virtio-mem changes. I'll be happy to get review feedback, testing reports, etc. for the virtio-mem changes. If there are no further comments, I guess this is good to go as a v1 soon. The basic idea of virtio-mem is to provide a

This series is based on latest linux-next. The patches are located at: https://github.com/davidhildenbrand/linux.git virtio-mem-rfc-v4 The basic idea of virtio-mem is to provide a flexible, cross-architecture memory hot(un)plug solution that avoids many limitations imposed by existing technologies, architectures, and interfaces. More details can be found below and in linked material. This

This series is based on latest linux-next. The patches are located at: https://github.com/davidhildenbrand/linux.git virtio-mem-rfc-v4 The basic idea of virtio-mem is to provide a flexible, cross-architecture memory hot(un)plug solution that avoids many limitations imposed by existing technologies, architectures, and interfaces. More details can be found below and in linked material. This

Hi: This is a new version of trying to enable tx interrupts for virtio-net. We used to try to avoid tx interrupts and orphan packets before transmission for virtio-net. This breaks socket accounting and can lead serveral other side effects e.g: - Several other functions which depends on socket accounting can not work correctly (e.g TCP Small Queue) - No tx completion which make BQL or packet