Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Fri, Jun 17, 2016 at 12:26:51PM -0700, Huang, Ying wrote: > Minchan Kim writes: > > > On Thu, Jun 16, 2016 at 03:27:44PM -0700, Huang, Ying wrote: > >> Minchan Kim writes: > >> > >> > On Thu, Jun 16, 2016 at 07:52:26AM +0800, Huang, Ying wrote: > >>

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Fri, Jun 17, 2016 at 12:26:51PM -0700, Huang, Ying wrote: > Minchan Kim writes: > > > On Thu, Jun 16, 2016 at 03:27:44PM -0700, Huang, Ying wrote: > >> Minchan Kim writes: > >> > >> > On Thu, Jun 16, 2016 at 07:52:26AM +0800, Huang, Ying wrote: > >> >> "Kirill A. Shutemov" writes: > >> >>

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

Minchan Kim writes: > On Thu, Jun 16, 2016 at 03:27:44PM -0700, Huang, Ying wrote: >> Minchan Kim writes: >> >> > On Thu, Jun 16, 2016 at 07:52:26AM +0800, Huang, Ying wrote: >> >> "Kirill A. Shutemov" writes: >> >> >> >> > On

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

Minchan Kim writes: > On Thu, Jun 16, 2016 at 03:27:44PM -0700, Huang, Ying wrote: >> Minchan Kim writes: >> >> > On Thu, Jun 16, 2016 at 07:52:26AM +0800, Huang, Ying wrote: >> >> "Kirill A. Shutemov" writes: >> >> >> >> > On Tue, Jun 14, 2016 at 05:57:28PM +0900, Minchan Kim wrote: >> >>

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Thu, Jun 16, 2016 at 03:27:44PM -0700, Huang, Ying wrote: > Minchan Kim writes: > > > On Thu, Jun 16, 2016 at 07:52:26AM +0800, Huang, Ying wrote: > >> "Kirill A. Shutemov" writes: > >> > >> > On Tue, Jun 14, 2016 at 05:57:28PM +0900, Minchan Kim

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Thu, Jun 16, 2016 at 03:27:44PM -0700, Huang, Ying wrote: > Minchan Kim writes: > > > On Thu, Jun 16, 2016 at 07:52:26AM +0800, Huang, Ying wrote: > >> "Kirill A. Shutemov" writes: > >> > >> > On Tue, Jun 14, 2016 at 05:57:28PM +0900, Minchan Kim wrote: > >> >> On Wed, Jun 08, 2016 at

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Thu, Jun 16, 2016 at 07:52:26AM +0800, Huang, Ying wrote: > "Kirill A. Shutemov" writes: > > > On Tue, Jun 14, 2016 at 05:57:28PM +0900, Minchan Kim wrote: > >> On Wed, Jun 08, 2016 at 11:58:11AM +0300, Kirill A. Shutemov wrote: > >> > On Wed, Jun 08, 2016 at 04:41:37PM

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Thu, Jun 16, 2016 at 07:52:26AM +0800, Huang, Ying wrote: > "Kirill A. Shutemov" writes: > > > On Tue, Jun 14, 2016 at 05:57:28PM +0900, Minchan Kim wrote: > >> On Wed, Jun 08, 2016 at 11:58:11AM +0300, Kirill A. Shutemov wrote: > >> > On Wed, Jun 08, 2016 at 04:41:37PM +0800, Huang, Ying

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

"Kirill A. Shutemov" writes: > On Tue, Jun 14, 2016 at 05:57:28PM +0900, Minchan Kim wrote: >> On Wed, Jun 08, 2016 at 11:58:11AM +0300, Kirill A. Shutemov wrote: >> > On Wed, Jun 08, 2016 at 04:41:37PM +0800, Huang, Ying wrote: >> > > "Huang, Ying"

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

"Kirill A. Shutemov" writes: > On Tue, Jun 14, 2016 at 05:57:28PM +0900, Minchan Kim wrote: >> On Wed, Jun 08, 2016 at 11:58:11AM +0300, Kirill A. Shutemov wrote: >> > On Wed, Jun 08, 2016 at 04:41:37PM +0800, Huang, Ying wrote: >> > > "Huang, Ying" writes: >> > > >> > > > "Kirill A. Shutemov"

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

Minchan Kim writes: > On Mon, Jun 13, 2016 at 05:02:15PM +0800, Huang, Ying wrote: >> Linus Torvalds writes: >> >> > On Sat, Jun 11, 2016 at 5:49 PM, Huang, Ying wrote: >> >> >> >> From perf profile, the time spent in

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

Minchan Kim writes: > On Mon, Jun 13, 2016 at 05:02:15PM +0800, Huang, Ying wrote: >> Linus Torvalds writes: >> >> > On Sat, Jun 11, 2016 at 5:49 PM, Huang, Ying wrote: >> >> >> >> From perf profile, the time spent in page_fault and its children >> >> functions are almost same (7.85% vs

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Tue, 2016-06-14 at 11:26 +0300, Kirill A. Shutemov wrote: > On Mon, Jun 13, 2016 at 11:11:05PM -0700, Linus Torvalds wrote: > > > > On Mon, Jun 13, 2016 at 5:52 AM, Kirill A. Shutemov > > wrote: > > > > > > On Sat, Jun 11, 2016 at 06:02:57PM -0700, Linus

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Tue, 2016-06-14 at 11:26 +0300, Kirill A. Shutemov wrote: > On Mon, Jun 13, 2016 at 11:11:05PM -0700, Linus Torvalds wrote: > > > > On Mon, Jun 13, 2016 at 5:52 AM, Kirill A. Shutemov > > wrote: > > > > > > On Sat, Jun 11, 2016 at 06:02:57PM -0700, Linus Torvalds wrote: > > > > > > > > > >

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Tue, Jun 14, 2016 at 05:57:28PM +0900, Minchan Kim wrote: > On Wed, Jun 08, 2016 at 11:58:11AM +0300, Kirill A. Shutemov wrote: > > On Wed, Jun 08, 2016 at 04:41:37PM +0800, Huang, Ying wrote: > > > "Huang, Ying" writes: > > > > > > > "Kirill A. Shutemov"

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Tue, Jun 14, 2016 at 05:57:28PM +0900, Minchan Kim wrote: > On Wed, Jun 08, 2016 at 11:58:11AM +0300, Kirill A. Shutemov wrote: > > On Wed, Jun 08, 2016 at 04:41:37PM +0800, Huang, Ying wrote: > > > "Huang, Ying" writes: > > > > > > > "Kirill A. Shutemov" writes: > > > > > > > >> On Mon, Jun

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On 06/14/2016 08:11 AM, Linus Torvalds wrote: > On Mon, Jun 13, 2016 at 5:52 AM, Kirill A. Shutemov > wrote: >> On Sat, Jun 11, 2016 at 06:02:57PM -0700, Linus Torvalds wrote: >>> >>> I've timed it at over a thousand cycles on at least some CPU's, but >>> that's

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On 06/14/2016 08:11 AM, Linus Torvalds wrote: > On Mon, Jun 13, 2016 at 5:52 AM, Kirill A. Shutemov > wrote: >> On Sat, Jun 11, 2016 at 06:02:57PM -0700, Linus Torvalds wrote: >>> >>> I've timed it at over a thousand cycles on at least some CPU's, but >>> that's still peanuts compared to a real

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Mon, Jun 13, 2016 at 05:02:15PM +0800, Huang, Ying wrote: > Linus Torvalds writes: > > > On Sat, Jun 11, 2016 at 5:49 PM, Huang, Ying wrote: > >> > >> From perf profile, the time spent in page_fault and its children > >> functions are

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Mon, Jun 13, 2016 at 05:02:15PM +0800, Huang, Ying wrote: > Linus Torvalds writes: > > > On Sat, Jun 11, 2016 at 5:49 PM, Huang, Ying wrote: > >> > >> From perf profile, the time spent in page_fault and its children > >> functions are almost same (7.85% vs 7.81%). So the time spent in page

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Wed, Jun 08, 2016 at 11:58:11AM +0300, Kirill A. Shutemov wrote: > On Wed, Jun 08, 2016 at 04:41:37PM +0800, Huang, Ying wrote: > > "Huang, Ying" writes: > > > > > "Kirill A. Shutemov" writes: > > > > > >> On Mon, Jun 06, 2016 at

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Wed, Jun 08, 2016 at 11:58:11AM +0300, Kirill A. Shutemov wrote: > On Wed, Jun 08, 2016 at 04:41:37PM +0800, Huang, Ying wrote: > > "Huang, Ying" writes: > > > > > "Kirill A. Shutemov" writes: > > > > > >> On Mon, Jun 06, 2016 at 10:27:24AM +0800, kernel test robot wrote: > > >>> > > >>>

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Mon, Jun 13, 2016 at 11:11:05PM -0700, Linus Torvalds wrote: > On Mon, Jun 13, 2016 at 5:52 AM, Kirill A. Shutemov > wrote: > > On Sat, Jun 11, 2016 at 06:02:57PM -0700, Linus Torvalds wrote: > >> > >> I've timed it at over a thousand cycles on at least some

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Mon, Jun 13, 2016 at 11:11:05PM -0700, Linus Torvalds wrote: > On Mon, Jun 13, 2016 at 5:52 AM, Kirill A. Shutemov > wrote: > > On Sat, Jun 11, 2016 at 06:02:57PM -0700, Linus Torvalds wrote: > >> > >> I've timed it at over a thousand cycles on at least some CPU's, but > >> that's still

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Mon, Jun 13, 2016 at 5:52 AM, Kirill A. Shutemov wrote: > On Sat, Jun 11, 2016 at 06:02:57PM -0700, Linus Torvalds wrote: >> >> I've timed it at over a thousand cycles on at least some CPU's, but >> that's still peanuts compared to a real page fault. It

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Mon, Jun 13, 2016 at 5:52 AM, Kirill A. Shutemov wrote: > On Sat, Jun 11, 2016 at 06:02:57PM -0700, Linus Torvalds wrote: >> >> I've timed it at over a thousand cycles on at least some CPU's, but >> that's still peanuts compared to a real page fault. It shouldn't be >> *that* noticeable, ie no

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Sat, Jun 11, 2016 at 06:02:57PM -0700, Linus Torvalds wrote: > On Sat, Jun 11, 2016 at 5:49 PM, Huang, Ying wrote: > > > > From perf profile, the time spent in page_fault and its children > > functions are almost same (7.85% vs 7.81%). So the time spent in page > > fault

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Sat, Jun 11, 2016 at 06:02:57PM -0700, Linus Torvalds wrote: > On Sat, Jun 11, 2016 at 5:49 PM, Huang, Ying wrote: > > > > From perf profile, the time spent in page_fault and its children > > functions are almost same (7.85% vs 7.81%). So the time spent in page > > fault and page table

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

Linus Torvalds writes: > On Sat, Jun 11, 2016 at 5:49 PM, Huang, Ying wrote: >> >> From perf profile, the time spent in page_fault and its children >> functions are almost same (7.85% vs 7.81%). So the time spent in page >> fault and page

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

Linus Torvalds writes: > On Sat, Jun 11, 2016 at 5:49 PM, Huang, Ying wrote: >> >> From perf profile, the time spent in page_fault and its children >> functions are almost same (7.85% vs 7.81%). So the time spent in page >> fault and page table operation itself doesn't changed much. So, you

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Sat, Jun 11, 2016 at 5:49 PM, Huang, Ying wrote: > > From perf profile, the time spent in page_fault and its children > functions are almost same (7.85% vs 7.81%). So the time spent in page > fault and page table operation itself doesn't changed much. So, you > mean CPU

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Sat, Jun 11, 2016 at 5:49 PM, Huang, Ying wrote: > > From perf profile, the time spent in page_fault and its children > functions are almost same (7.85% vs 7.81%). So the time spent in page > fault and page table operation itself doesn't changed much. So, you > mean CPU may be slower to load

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

"Kirill A. Shutemov" writes: > On Wed, Jun 08, 2016 at 04:41:37PM +0800, Huang, Ying wrote: >> "Huang, Ying" writes: >> >> > "Kirill A. Shutemov" writes: >> > >> >> On Mon, Jun 06, 2016 at 10:27:24AM

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

"Kirill A. Shutemov" writes: > On Wed, Jun 08, 2016 at 04:41:37PM +0800, Huang, Ying wrote: >> "Huang, Ying" writes: >> >> > "Kirill A. Shutemov" writes: >> > >> >> On Mon, Jun 06, 2016 at 10:27:24AM +0800, kernel test robot wrote: >> >>> >> >>> FYI, we noticed a -6.3% regression of

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Wed, Jun 08, 2016 at 04:41:37PM +0800, Huang, Ying wrote: > "Huang, Ying" writes: > > > "Kirill A. Shutemov" writes: > > > >> On Mon, Jun 06, 2016 at 10:27:24AM +0800, kernel test robot wrote: > >>> > >>> FYI, we noticed a -6.3%

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

On Wed, Jun 08, 2016 at 04:41:37PM +0800, Huang, Ying wrote: > "Huang, Ying" writes: > > > "Kirill A. Shutemov" writes: > > > >> On Mon, Jun 06, 2016 at 10:27:24AM +0800, kernel test robot wrote: > >>> > >>> FYI, we noticed a -6.3% regression of unixbench.score due to commit: > >>> > >>>

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

"Huang, Ying" writes: > "Kirill A. Shutemov" writes: > >> On Mon, Jun 06, 2016 at 10:27:24AM +0800, kernel test robot wrote: >>> >>> FYI, we noticed a -6.3% regression of unixbench.score due to commit: >>> >>> commit

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

"Huang, Ying" writes: > "Kirill A. Shutemov" writes: > >> On Mon, Jun 06, 2016 at 10:27:24AM +0800, kernel test robot wrote: >>> >>> FYI, we noticed a -6.3% regression of unixbench.score due to commit: >>> >>> commit 5c0a85fad949212b3e059692deecdeed74ae7ec7 ("mm: make faultaround >>> produce

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

"Kirill A. Shutemov" writes: > On Mon, Jun 06, 2016 at 10:27:24AM +0800, kernel test robot wrote: >> >> FYI, we noticed a -6.3% regression of unixbench.score due to commit: >> >> commit 5c0a85fad949212b3e059692deecdeed74ae7ec7 ("mm: make faultaround >> produce

Re: [LKP] [lkp] [mm] 5c0a85fad9: unixbench.score -6.3% regression

"Kirill A. Shutemov" writes: > On Mon, Jun 06, 2016 at 10:27:24AM +0800, kernel test robot wrote: >> >> FYI, we noticed a -6.3% regression of unixbench.score due to commit: >> >> commit 5c0a85fad949212b3e059692deecdeed74ae7ec7 ("mm: make faultaround >> produce old ptes") >>