Displaying 10 results from an estimated 10 matches for "virtblk0".
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virtblk
2019 Mar 12
4
virtio-blk: should num_vqs be limited by num_possible_cpus()?
I observed that there is one msix vector for config and one shared vector
for all queues in below qemu cmdline, when the num-queues for virtio-blk
is more than the number of possible cpus:
qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6"
# cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
... ...
24: 0 0 0 0 PCI-MSI 65536-edge virtio0-config
25: 0 0 0 59 PCI-MSI 65537-edge virtio0-virtqueues
... ...
Howe...
2019 Mar 12
4
virtio-blk: should num_vqs be limited by num_possible_cpus()?
I observed that there is one msix vector for config and one shared vector
for all queues in below qemu cmdline, when the num-queues for virtio-blk
is more than the number of possible cpus:
qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6"
# cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
... ...
24: 0 0 0 0 PCI-MSI 65536-edge virtio0-config
25: 0 0 0 59 PCI-MSI 65537-edge virtio0-virtqueues
... ...
Howe...
2019 Mar 13
2
virtio-blk: should num_vqs be limited by num_possible_cpus()?
...observed that there is one msix vector for config and one shared vector
>> for all queues in below qemu cmdline, when the num-queues for virtio-blk
>> is more than the number of possible cpus:
>>
>> qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6"
>>
>> # cat /proc/interrupts
>> CPU0 CPU1 CPU2 CPU3
>> ... ...
>> 24: 0 0 0 0 PCI-MSI 65536-edge virtio0-config
>> 25: 0 0 0 59 PCI-...
2019 Mar 13
2
virtio-blk: should num_vqs be limited by num_possible_cpus()?
...observed that there is one msix vector for config and one shared vector
>> for all queues in below qemu cmdline, when the num-queues for virtio-blk
>> is more than the number of possible cpus:
>>
>> qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6"
>>
>> # cat /proc/interrupts
>> CPU0 CPU1 CPU2 CPU3
>> ... ...
>> 24: 0 0 0 0 PCI-MSI 65536-edge virtio0-config
>> 25: 0 0 0 59 PCI-...
2019 Mar 12
0
virtio-blk: should num_vqs be limited by num_possible_cpus()?
...wrote:
> I observed that there is one msix vector for config and one shared vector
> for all queues in below qemu cmdline, when the num-queues for virtio-blk
> is more than the number of possible cpus:
>
> qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6"
>
> # cat /proc/interrupts
> CPU0 CPU1 CPU2 CPU3
> ... ...
> 24: 0 0 0 0 PCI-MSI 65536-edge virtio0-config
> 25: 0 0 0 59 PCI-MSI 65537-edge vir...
2019 Mar 14
0
virtio-blk: should num_vqs be limited by num_possible_cpus()?
...wrote:
> I observed that there is one msix vector for config and one shared vector
> for all queues in below qemu cmdline, when the num-queues for virtio-blk
> is more than the number of possible cpus:
>
> qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6"
So why do this?
> # cat /proc/interrupts
> CPU0 CPU1 CPU2 CPU3
> ... ...
> 24: 0 0 0 0 PCI-MSI 65536-edge virtio0-config
> 25: 0 0 0 59 PCI-MSI 65537-e...
2019 Mar 13
0
virtio-blk: should num_vqs be limited by num_possible_cpus()?
...is one msix vector for config and one shared vector
> >> for all queues in below qemu cmdline, when the num-queues for virtio-blk
> >> is more than the number of possible cpus:
> >>
> >> qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6"
> >>
> >> # cat /proc/interrupts
> >> CPU0 CPU1 CPU2 CPU3
> >> ... ...
> >> 24: 0 0 0 0 PCI-MSI 65536-edge virtio0-config
> >> 25: 0...
2019 Mar 15
0
virtio-blk: should num_vqs be limited by num_possible_cpus()?
...g and one shared vector
>>>>> for all queues in below qemu cmdline, when the num-queues for virtio-blk
>>>>> is more than the number of possible cpus:
>>>>>
>>>>> qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6"
>>>>>
>>>>> # cat /proc/interrupts
>>>>> CPU0 CPU1 CPU2 CPU3
>>>>> ... ...
>>>>> 24: 0 0 0 0 PCI-MSI 65536-edge virtio0-config
>...
2019 Mar 14
4
virtio-blk: should num_vqs be limited by num_possible_cpus()?
...vector for config and one shared vector
>>>> for all queues in below qemu cmdline, when the num-queues for virtio-blk
>>>> is more than the number of possible cpus:
>>>>
>>>> qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6"
>>>>
>>>> # cat /proc/interrupts
>>>> CPU0 CPU1 CPU2 CPU3
>>>> ... ...
>>>> 24: 0 0 0 0 PCI-MSI 65536-edge virtio0-config
>>>> 25:...
2019 Mar 14
4
virtio-blk: should num_vqs be limited by num_possible_cpus()?
...vector for config and one shared vector
>>>> for all queues in below qemu cmdline, when the num-queues for virtio-blk
>>>> is more than the number of possible cpus:
>>>>
>>>> qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6"
>>>>
>>>> # cat /proc/interrupts
>>>> CPU0 CPU1 CPU2 CPU3
>>>> ... ...
>>>> 24: 0 0 0 0 PCI-MSI 65536-edge virtio0-config
>>>> 25:...