Displaying 20 results from an estimated 2000 matches similar to: "[PATCH AUTOSEL 4.19 44/53] virtio-blk: limit number of hw queues by nr_cpu_ids"
2019 Apr 27
0
[PATCH AUTOSEL 5.0 65/79] virtio-blk: limit number of hw queues by nr_cpu_ids
From: Dongli Zhang <dongli.zhang at oracle.com>
[ Upstream commit bf348f9b78d413e75bb079462751a1d86b6de36c ]
When tag_set->nr_maps is 1, the block layer limits the number of hw queues
by nr_cpu_ids. No matter how many hw queues are used by virtio-blk, as it
has (tag_set->nr_maps == 1), it can use at most nr_cpu_ids hw queues.
In addition, specifically for pci scenario, when the
2019 Apr 27
0
[PATCH AUTOSEL 4.14 26/32] virtio-blk: limit number of hw queues by nr_cpu_ids
From: Dongli Zhang <dongli.zhang at oracle.com>
[ Upstream commit bf348f9b78d413e75bb079462751a1d86b6de36c ]
When tag_set->nr_maps is 1, the block layer limits the number of hw queues
by nr_cpu_ids. No matter how many hw queues are used by virtio-blk, as it
has (tag_set->nr_maps == 1), it can use at most nr_cpu_ids hw queues.
In addition, specifically for pci scenario, when the
2019 Apr 27
0
[PATCH AUTOSEL 4.9 13/16] virtio-blk: limit number of hw queues by nr_cpu_ids
From: Dongli Zhang <dongli.zhang at oracle.com>
[ Upstream commit bf348f9b78d413e75bb079462751a1d86b6de36c ]
When tag_set->nr_maps is 1, the block layer limits the number of hw queues
by nr_cpu_ids. No matter how many hw queues are used by virtio-blk, as it
has (tag_set->nr_maps == 1), it can use at most nr_cpu_ids hw queues.
In addition, specifically for pci scenario, when the
2019 Mar 27
0
[PATCH 1/2] virtio-blk: limit number of hw queues by nr_cpu_ids
When tag_set->nr_maps is 1, the block layer limits the number of hw queues
by nr_cpu_ids. No matter how many hw queues are used by virtio-blk, as it
has (tag_set->nr_maps == 1), it can use at most nr_cpu_ids hw queues.
In addition, specifically for pci scenario, when the 'num-queues' specified
by qemu is more than maxcpus, virtio-blk would not be able to allocate more
than maxcpus
2019 Mar 27
6
[PATCH 0/2] Limit number of hw queues by nr_cpu_ids for virtio-blk and virtio-scsi
When tag_set->nr_maps is 1, the block layer limits the number of hw queues
by nr_cpu_ids. No matter how many hw queues are use by
virtio-blk/virtio-scsi, as they both have (tag_set->nr_maps == 1), they
can use at most nr_cpu_ids hw queues.
In addition, specifically for pci scenario, when the 'num-queues' specified
by qemu is more than maxcpus, virtio-blk/virtio-scsi would not be
2019 Mar 27
0
[PATCH 2/2] scsi: virtio_scsi: limit number of hw queues by nr_cpu_ids
When tag_set->nr_maps is 1, the block layer limits the number of hw queues
by nr_cpu_ids. No matter how many hw queues are used by virtio-scsi, as it
has (tag_set->nr_maps == 1), it can use at most nr_cpu_ids hw queues.
In addition, specifically for pci scenario, when the 'num_queues' specified
by qemu is more than maxcpus, virtio-scsi would not be able to allocate
more than maxcpus
2019 Mar 14
0
virtio-blk: should num_vqs be limited by num_possible_cpus()?
On Thu, 14 Mar 2019 14:12:32 +0800
Dongli Zhang <dongli.zhang at oracle.com> wrote:
> On 3/13/19 5:39 PM, Cornelia Huck wrote:
> > On Wed, 13 Mar 2019 11:26:04 +0800
> > Dongli Zhang <dongli.zhang at oracle.com> wrote:
> >
> >> On 3/13/19 1:33 AM, Cornelia Huck wrote:
> >>> On Tue, 12 Mar 2019 10:22:46 -0700 (PDT)
> >>> Dongli
2019 Mar 15
0
virtio-blk: should num_vqs be limited by num_possible_cpus()?
On 2019/3/14 ??2:12, Dongli Zhang wrote:
>
> On 3/13/19 5:39 PM, Cornelia Huck wrote:
>> On Wed, 13 Mar 2019 11:26:04 +0800
>> Dongli Zhang <dongli.zhang at oracle.com> wrote:
>>
>>> On 3/13/19 1:33 AM, Cornelia Huck wrote:
>>>> On Tue, 12 Mar 2019 10:22:46 -0700 (PDT)
>>>> Dongli Zhang <dongli.zhang at oracle.com> wrote:
2019 Mar 14
4
virtio-blk: should num_vqs be limited by num_possible_cpus()?
On 3/13/19 5:39 PM, Cornelia Huck wrote:
> On Wed, 13 Mar 2019 11:26:04 +0800
> Dongli Zhang <dongli.zhang at oracle.com> wrote:
>
>> On 3/13/19 1:33 AM, Cornelia Huck wrote:
>>> On Tue, 12 Mar 2019 10:22:46 -0700 (PDT)
>>> Dongli Zhang <dongli.zhang at oracle.com> wrote:
>>>
>>>> I observed that there is one msix vector for
2019 Mar 14
4
virtio-blk: should num_vqs be limited by num_possible_cpus()?
On 3/13/19 5:39 PM, Cornelia Huck wrote:
> On Wed, 13 Mar 2019 11:26:04 +0800
> Dongli Zhang <dongli.zhang at oracle.com> wrote:
>
>> On 3/13/19 1:33 AM, Cornelia Huck wrote:
>>> On Tue, 12 Mar 2019 10:22:46 -0700 (PDT)
>>> Dongli Zhang <dongli.zhang at oracle.com> wrote:
>>>
>>>> I observed that there is one msix vector for
2019 Mar 20
0
virtio-blk: should num_vqs be limited by num_possible_cpus()?
On 2019/3/19 ??10:22, Dongli Zhang wrote:
> Hi Jason,
>
> On 3/18/19 3:47 PM, Jason Wang wrote:
>> On 2019/3/15 ??8:41, Cornelia Huck wrote:
>>> On Fri, 15 Mar 2019 12:50:11 +0800
>>> Jason Wang <jasowang at redhat.com> wrote:
>>>
>>>> Or something like I proposed several years ago?
>>>>
2016 Jun 18
2
[PATCH] drivers: virtio_blk: notify blk-core when hw-queue number changes
On 13/06/2016 11:58, Bob Liu wrote:
> A guest might be migrated to other hosts with different num_queues, the
> blk-core should aware of that else the reference of &vblk->vqs[qid] may be wrong.
>
> Signed-off-by: Bob Liu <bob.liu at oracle.com>
> ---
> drivers/block/virtio_blk.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git
2016 Jun 18
2
[PATCH] drivers: virtio_blk: notify blk-core when hw-queue number changes
On 13/06/2016 11:58, Bob Liu wrote:
> A guest might be migrated to other hosts with different num_queues, the
> blk-core should aware of that else the reference of &vblk->vqs[qid] may be wrong.
>
> Signed-off-by: Bob Liu <bob.liu at oracle.com>
> ---
> drivers/block/virtio_blk.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git
2016 Jul 28
0
[PATCH] drivers: virtio_blk: notify blk-core when hw-queue number changes
On 06/19/2016 06:10 AM, Paolo Bonzini wrote:
>
>
> On 13/06/2016 11:58, Bob Liu wrote:
>> A guest might be migrated to other hosts with different num_queues, the
>> blk-core should aware of that else the reference of &vblk->vqs[qid] may be wrong.
>>
>> Signed-off-by: Bob Liu <bob.liu at oracle.com>
>> ---
>> drivers/block/virtio_blk.c |
2019 Mar 19
3
virtio-blk: should num_vqs be limited by num_possible_cpus()?
Hi Jason,
On 3/18/19 3:47 PM, Jason Wang wrote:
>
> On 2019/3/15 ??8:41, Cornelia Huck wrote:
>> On Fri, 15 Mar 2019 12:50:11 +0800
>> Jason Wang <jasowang at redhat.com> wrote:
>>
>>> Or something like I proposed several years ago?
>>> https://do-db2.lkml.org/lkml/2014/12/25/169
>>>
>>> Btw, for virtio-net, I think we actually
2019 Mar 19
3
virtio-blk: should num_vqs be limited by num_possible_cpus()?
Hi Jason,
On 3/18/19 3:47 PM, Jason Wang wrote:
>
> On 2019/3/15 ??8:41, Cornelia Huck wrote:
>> On Fri, 15 Mar 2019 12:50:11 +0800
>> Jason Wang <jasowang at redhat.com> wrote:
>>
>>> Or something like I proposed several years ago?
>>> https://do-db2.lkml.org/lkml/2014/12/25/169
>>>
>>> Btw, for virtio-net, I think we actually
2016 Jun 13
0
[PATCH] drivers: virtio_blk: notify blk-core when hw-queue number changes
A guest might be migrated to other hosts with different num_queues, the
blk-core should aware of that else the reference of &vblk->vqs[qid] may be wrong.
Signed-off-by: Bob Liu <bob.liu at oracle.com>
---
drivers/block/virtio_blk.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 42758b5..c169238 100644
---
2016 Jun 13
0
[PATCH] drivers: virtio_blk: notify blk-core when hw-queue number changes
A guest might be migrated to other hosts with different num_queues, the
blk-core should aware of that else the reference of &vblk->vqs[qid] may be wrong.
Signed-off-by: Bob Liu <bob.liu at oracle.com>
---
drivers/block/virtio_blk.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 42758b5..c169238 100644
---
2014 Jun 26
0
[PATCH v2 2/2] block: virtio-blk: support multi virt queues per virtio-blk device
Firstly this patch supports more than one virtual queues for virtio-blk
device.
Secondly this patch maps the virtual queue to blk-mq's hardware queue.
With this approach, both scalability and performance can be improved.
Signed-off-by: Ming Lei <ming.lei at canonical.com>
---
drivers/block/virtio_blk.c | 109 ++++++++++++++++++++++++++++++++++++--------
1 file changed, 89
2014 Jun 20
0
[PATCH v1 2/2] block: virtio-blk: support multi virt queues per virtio-blk device
Firstly this patch supports more than one virtual queues for virtio-blk
device.
Secondly this patch maps the virtual queue to blk-mq's hardware queue.
With this approach, both scalability and performance can be improved.
Signed-off-by: Ming Lei <ming.lei at canonical.com>
---
drivers/block/virtio_blk.c | 70 +++++++++++++++++++++++++++++++-------------
1 file changed, 50