Re: [PATCH BUGFIX/IMPROVEMENT 0/4] block, bfq: series of fixes of bugs affecting service guarantees

2017-10-03 Thread Jens Axboe
On 09/21/2017 03:03 AM, Paolo Valente wrote: > Hi, > the first patch in this series fixes a bug that causes bfq to fail to > guarantee a high responsiveness on some drives, if there is heavy > random read+write I/O in the background. More precisely, such a > failure allowed this bug to be found [1]

[PATCH BUGFIX/IMPROVEMENT 0/4] block, bfq: series of fixes of bugs affecting service guarantees

2017-09-21 Thread Paolo Valente
Hi, the first patch in this series fixes a bug that causes bfq to fail to guarantee a high responsiveness on some drives, if there is heavy random read+write I/O in the background. More precisely, such a failure allowed this bug to be found [1], but the bug may well cause other yet unreported anoma