Re: [PATCH v5 00/11] simplify block layer based on immutable biovecs

2015-07-27 Thread Ming Lin
On Mon, Jul 27, 2015 at 3:11 PM, Ming Lin wrote: > It's more interesting if we look at how many bios are allocated for each > application IO request. > > e.g. 10+2 RAID6 with 128K chunk. > > Assume we only consider device max_segments limitation. > > # cat /sys/block/md0/queue/max_segments > 126 >

Re: [PATCH v5 00/11] simplify block layer based on immutable biovecs

2015-07-27 Thread Ming Lin
On Mon, 2015-07-27 at 13:50 -0400, Mike Snitzer wrote: > On Thu, Jul 23 2015 at 2:21pm -0400, > Ming Lin wrote: > > > On Mon, 2015-07-13 at 11:35 -0400, Mike Snitzer wrote: > > > On Mon, Jul 13 2015 at 1:12am -0400, > > > Ming Lin wrote: > > > > > > > On Mon, 2015-07-06 at 00:11 -0700, m...@k

Re: [PATCH v5 00/11] simplify block layer based on immutable biovecs

2015-07-27 Thread Mike Snitzer
On Thu, Jul 23 2015 at 2:21pm -0400, Ming Lin wrote: > On Mon, 2015-07-13 at 11:35 -0400, Mike Snitzer wrote: > > On Mon, Jul 13 2015 at 1:12am -0400, > > Ming Lin wrote: > > > > > On Mon, 2015-07-06 at 00:11 -0700, m...@kernel.org wrote: > > > > Hi Mike, > > > > > > > > On Wed, 2015-06-10 a

Re: [PATCH v5 00/11] simplify block layer based on immutable biovecs

2015-07-24 Thread Kent Overstreet
On Tue, Jul 14, 2015 at 01:51:26PM -0700, Ming Lin wrote: > On Mon, 2015-07-13 at 11:35 -0400, Mike Snitzer wrote: > > On Mon, Jul 13 2015 at 1:12am -0400, > > Ming Lin wrote: > > > > > On Mon, 2015-07-06 at 00:11 -0700, m...@kernel.org wrote: > > > > Hi Mike, > > > > > > > > On Wed, 2015-06-10

Re: [PATCH v5 00/11] simplify block layer based on immutable biovecs

2015-07-23 Thread Ming Lin
On Mon, 2015-07-13 at 11:35 -0400, Mike Snitzer wrote: > On Mon, Jul 13 2015 at 1:12am -0400, > Ming Lin wrote: > > > On Mon, 2015-07-06 at 00:11 -0700, m...@kernel.org wrote: > > > Hi Mike, > > > > > > On Wed, 2015-06-10 at 17:46 -0400, Mike Snitzer wrote: > > > > I've been busy getting DM cha

Re: [PATCH v5 00/11] simplify block layer based on immutable biovecs

2015-07-16 Thread Jeff Moyer
Ming Lin writes: > On Mon, 2015-07-13 at 11:35 -0400, Mike Snitzer wrote: >> I will do additional review to answer 1 and 2 above. And Jeff Moyer >> told me he'd test the patchset on one of his testbeds. > > Hi Jeff, > > FYI, here is a fix for patch 1. > Or you can pull from my tree. > https://gi

Re: [PATCH v5 00/11] simplify block layer based on immutable biovecs

2015-07-16 Thread Ming Lin
On Mon, 2015-07-13 at 11:35 -0400, Mike Snitzer wrote: > I will do additional review to answer 1 and 2 above. And Jeff Moyer > told me he'd test the patchset on one of his testbeds. Hi Jeff, FYI, here is a fix for patch 1. Or you can pull from my tree. https://git.kernel.org/cgit/linux/kernel/gi

Re: [PATCH v5 00/11] simplify block layer based on immutable biovecs

2015-07-14 Thread Ming Lin
On Mon, 2015-07-13 at 11:35 -0400, Mike Snitzer wrote: > On Mon, Jul 13 2015 at 1:12am -0400, > Ming Lin wrote: > > > On Mon, 2015-07-06 at 00:11 -0700, m...@kernel.org wrote: > > > Hi Mike, > > > > > > On Wed, 2015-06-10 at 17:46 -0400, Mike Snitzer wrote: > > > > I've been busy getting DM cha

Re: [PATCH v5 00/11] simplify block layer based on immutable biovecs

2015-07-13 Thread Mike Snitzer
On Mon, Jul 13 2015 at 1:12am -0400, Ming Lin wrote: > On Mon, 2015-07-06 at 00:11 -0700, m...@kernel.org wrote: > > Hi Mike, > > > > On Wed, 2015-06-10 at 17:46 -0400, Mike Snitzer wrote: > > > I've been busy getting DM changes for the 4.2 merge window finalized. > > > As such I haven't connec

Re: [PATCH v5 00/11] simplify block layer based on immutable biovecs

2015-07-12 Thread Ming Lin
On Mon, 2015-07-06 at 00:11 -0700, m...@kernel.org wrote: > Hi Mike, > > On Wed, 2015-06-10 at 17:46 -0400, Mike Snitzer wrote: > > I've been busy getting DM changes for the 4.2 merge window finalized. > > As such I haven't connected with others on the team to discuss this > > issue. > > > > I'll

[PATCH v5 00/11] simplify block layer based on immutable biovecs

2015-07-06 Thread mlin
Hi Mike, On Wed, 2015-06-10 at 17:46 -0400, Mike Snitzer wrote: > I've been busy getting DM changes for the 4.2 merge window finalized. > As such I haven't connected with others on the team to discuss this > issue. > > I'll see if we can make time in the next 2 days. But I also have > RHEL-speci