On 1/12/18 3:20 AM, Paolo Valente wrote:
>
>
>> Il giorno 12 gen 2018, alle ore 11:15, Holger Hoffstätte
>> ha scritto:
>>
>> On 01/12/18 06:58, Paolo Valente wrote:
>>>
>>>
Il giorno 28 dic 2017, alle ore 15:00, Holger Hoffstätte
ha scritto:
On 12/28/17 12:19, Paolo
> Il giorno 12 gen 2018, alle ore 11:15, Holger Hoffstätte
> ha scritto:
>
> On 01/12/18 06:58, Paolo Valente wrote:
>>
>>
>>> Il giorno 28 dic 2017, alle ore 15:00, Holger Hoffstätte
>>> ha scritto:
>>>
>>>
>>> On 12/28/17 12:19, Paolo Valente wrote:
>>> (snip half a tech report ;)
>>>
On 01/12/18 06:58, Paolo Valente wrote:
>
>
>> Il giorno 28 dic 2017, alle ore 15:00, Holger Hoffstätte
>> ha scritto:
>>
>>
>> On 12/28/17 12:19, Paolo Valente wrote:
>> (snip half a tech report ;)
>>
>> So either this or the previous patch ("limit tags for writes and async I/O"
>> can lead to
> Il giorno 28 dic 2017, alle ore 15:00, Holger Hoffstätte
> ha scritto:
>
>
> On 12/28/17 12:19, Paolo Valente wrote:
> (snip half a tech report ;)
>
> So either this or the previous patch ("limit tags for writes and async I/O"
> can lead to a hard, unrecoverable hang with heavy writes. Sin
On Thu, 28 Dec 2017 15:00:56 +0100, Holger Hoffstätte wrote:
> On 12/28/17 12:19, Paolo Valente wrote:
> (snip half a tech report ;)
>
> So either this or the previous patch ("limit tags for writes and async I/O"
> can lead to a hard, unrecoverable hang with heavy writes. Since I couldn't
> log i
Hi.
On čtvrtek 28. prosince 2017 12:19:17 CET Paolo Valente wrote:
> To maximise responsiveness, BFQ raises the weight, and performs device
> idling, for bfq_queues associated with processes deemed as
> interactive. In particular, weight raising has a maximum duration,
> equal to the time needed t
On 12/28/17 12:19, Paolo Valente wrote:
(snip half a tech report ;)
So either this or the previous patch ("limit tags for writes and async I/O"
can lead to a hard, unrecoverable hang with heavy writes. Since I couldn't
log into the affected system anymore I couldn't get any stack traces, blk-mq
d
To maximise responsiveness, BFQ raises the weight, and performs device
idling, for bfq_queues associated with processes deemed as
interactive. In particular, weight raising has a maximum duration,
equal to the time needed to start a large application. If a
weight-raised process goes on doing I/O be
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