Home » Mailing list archives » linux-kernel » 2010 » April » 13

Re: [PATCH]vmscan: handle underflow for get_scan_ratio

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
[view in full thread]
From: KOSAKI Motohiro
Subject: Re: [PATCH]vmscan: handle underflow for get_scan_ratio
Date: Monday, April 12, 2010 - 6:30 pm

> On 04/09/2010 05:20 PM, Andrew Morton wrote:

I'm surprised this ack a bit. Rik, do you have any improvement plan about
streaming io detection logic?
I think the patch have a slightly marginal benefit, it help to <1% scan
ratio case. but it have big regression, it cause streaming io (e.g. backup
operation) makes tons swap.

So, I thought we sould do either,
1) drop this one
2) merge to change stream io detection logic improvement at first, and
   merge this one at second.

Am i missing something?


--
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
Messages in current thread:
[PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Mon Mar 29, 10:53 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Mon Mar 29, 11:08 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Mon Mar 29, 11:32 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Mon Mar 29, 11:40 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Mon Mar 29, 11:53 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Tue Mar 30, 12:31 am)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Tue Mar 30, 1:13 am)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Minchan Kim, (Tue Mar 30, 3:17 am)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Tue Mar 30, 3:25 am)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Balbir Singh, (Tue Mar 30, 4:56 am)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Tue Mar 30, 9:53 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Tue Mar 30, 10:38 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Wu Fengguang, (Tue Mar 30, 10:41 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Wu Fengguang, (Tue Mar 30, 10:51 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Tue Mar 30, 10:53 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Tue Mar 30, 11:00 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Wu Fengguang, (Tue Mar 30, 11:03 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Andrew Morton, (Thu Apr 1, 3:16 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Thu Apr 1, 11:50 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Fri Apr 2, 2:13 am)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Fri Apr 2, 2:14 am)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Fri Apr 2, 2:24 am)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Wu Fengguang, (Sat Apr 3, 5:48 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Sun Apr 4, 7:19 am)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Wu Fengguang, (Mon Apr 5, 6:22 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Mon Apr 5, 6:25 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Mon Apr 5, 6:27 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Mon Apr 5, 6:36 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Wu Fengguang, (Mon Apr 5, 6:50 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Mon Apr 5, 7:06 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Wu Fengguang, (Mon Apr 5, 7:30 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Mon Apr 5, 7:58 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Wu Fengguang, (Mon Apr 5, 8:31 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Rik van Riel, (Mon Apr 5, 8:36 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Rik van Riel, (Mon Apr 5, 8:40 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Wu Fengguang, (Mon Apr 5, 9:49 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Wu Fengguang, (Mon Apr 5, 10:03 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Mon Apr 5, 10:09 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Mon Apr 5, 10:36 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Thu Apr 8, 11:51 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Andrew Morton, (Fri Apr 9, 2:20 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Rik van Riel, (Fri Apr 9, 2:25 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Sun Apr 11, 6:57 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Mon Apr 12, 6:30 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Rik van Riel, (Mon Apr 12, 7:42 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Tue Apr 13, 12:55 am)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Tue Apr 13, 1:55 am)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, Shaohua Li, (Tue Apr 13, 6:27 pm)
Re: [PATCH]vmscan: handle underflow for get_scan_ratio, KOSAKI Motohiro, (Wed Apr 14, 8:25 pm)