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

Re: [developer] Re: Is L2ARC read process single-threaded?

2018-08-29 Thread Richard Elling
> On Aug 29, 2018, at 11:49 AM, w.kruzel via openzfs-developer > wrote: > > I think yes, there is sufficient demand to have I/O at such level. What do > you mean by higher rate for the same workload? If types of devices - I have > tested two Intel nvme disks and one of them had a

[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

[developer] Re: [openzfs/openzfs] 8727 Native data and metadata encryption for zfs (#489)

2018-08-29 Thread Matthew Ahrens
@lundman FYI, I added 3 commits to fix a few more issues. There were some changes on linux that were not directly related to encryption but which the encryption code depends on. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on

[developer] Re: [openzfs/openzfs] 8727 Native data and metadata encryption for zfs (#489)

2018-08-29 Thread Matthew Ahrens
@ahrens pushed 3 commits. 3de57cc fix error handling in arc_read 5548355 spill blocks are metadata e2df9b7 zfs_receive_one needs to restore keylocation prop -- You are receiving this because you are subscribed to this thread. View it on GitHub:

[developer] Re: [openzfs/openzfs] 8727 Native data and metadata encryption for zfs (#489)

2018-08-29 Thread Matthew Ahrens
@GernotS Thanks for your report. I was not able to reproduce this with a simple test. Could you upload/send me the crash dump? -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub:

Re: [developer] Re: Is L2ARC read process single-threaded?

2018-08-29 Thread w.kruzel via openzfs-developer
I think yes, there is sufficient demand to have I/O at such level. What do you mean by higher rate for the same workload? If types of devices - I have tested two Intel nvme disks and one of them had a throughput limit on 1 thread at about 225MB/s while the other had an output of 285MB/s I shall

[developer] Re: [openzfs/openzfs] 9751 Allocation throttling misplacing ditto blocks (#688)

2018-08-29 Thread Alexander Motin
amotin commented on this pull request. > @@ -1039,6 +1039,13 @@ metaslab_group_allocatable(metaslab_group_t *mg, > metaslab_group_t *rotor, if (mg->mg_no_free_space) return (B_FALSE); + /* +* Relax allocation throttling

[developer] Re: [openzfs/openzfs] 9751 Allocation throttling misplacing ditto blocks (#688)

2018-08-29 Thread Matthew Ahrens
ahrens commented on this pull request. > @@ -1039,6 +1039,13 @@ metaslab_group_allocatable(metaslab_group_t *mg, > metaslab_group_t *rotor, if (mg->mg_no_free_space) return (B_FALSE); + /* +* Relax allocation throttling

[developer] Re: [openzfs/openzfs] 9751 Allocation throttling misplacing ditto blocks (#688)

2018-08-29 Thread Pavel Zakharov
pzakha approved this pull request. Great changes! -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/openzfs/openzfs/pull/688#pullrequestreview-150579785 -- openzfs: