[developer] Re: Potential bug recently introduced in arc_adjust() that leads to unintended pressure on MFU eventually leading to dramatic reduction in its size

2018-08-30 Thread Mark Johnston
On Thu, Aug 30, 2018 at 09:55:27AM +0300, Paul wrote: > 30 August 2018, 00:22:14, by "Mark Johnston" : > > > On Wed, Aug 29, 2018 at 12:42:33PM +0300, Paul wrote: > > > Hello team, > > > > > > > > > It seems like a commit on Mar 23 introduced a bug: if during execution of > > > arc_adjust() >

Re: [developer] Re: Potential bug recently introduced in arc_adjust() that leads to unintended pressure on MFU eventually leading to dramatic reduction in its size

2018-08-29 Thread Richard Elling
Thanks for passing this along, Mark. Comments embedded > On Aug 29, 2018, at 2:22 PM, Mark Johnston wrote: > > On Wed, Aug 29, 2018 at 12:42:33PM +0300, Paul wrote: >> Hello team, >> >> >> It seems like a commit on Mar 23 introduced a bug: if during execution of >> arc_adjust() >> target is

[developer] Re: Potential bug recently introduced in arc_adjust() that leads to unintended pressure on MFU eventually leading to dramatic reduction in its size

2018-08-29 Thread Mark Johnston
On Wed, Aug 29, 2018 at 12:42:33PM +0300, Paul wrote: > Hello team, > > > It seems like a commit on Mar 23 introduced a bug: if during execution of > arc_adjust() > target is reached after MRU is evicted current code continues evicting MFU. > Before said > commit, on the step prior to MFU