tag:blogger.com,1999:blog-6469704299235308349.post1101470714290584438..comments2024-02-09T16:24:46.087+11:00Comments on -ck hacking: BFS and optimising a global scheduler for per-cpu frequency scalingckhttp://www.blogger.com/profile/02904761195451530213noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-6469704299235308349.post-75235692616375744832011-03-29T01:58:28.601+11:002011-03-29T01:58:28.601+11:00you've released 0.370 for 2.6.35. what's t...you've released 0.370 for 2.6.35. what's the diff with 0.363 ?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-37395161643215094612011-03-28T07:32:22.286+11:002011-03-28T07:32:22.286+11:00You can use whatever governor you like. The other ...You can use whatever governor you like. The other non-scaling governors don't suffer from a performance penalty with a global queue scheduler (like BFS). This patch addresses a regression that occurs when you plug in one of the 3 scaling governors. Thanks for feedback.ckhttps://www.blogger.com/profile/02904761195451530213noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-57355754583241871062011-03-28T06:25:22.279+11:002011-03-28T06:25:22.279+11:00sweet, i can now watch 1080p videos smooth with st...sweet, i can now watch 1080p videos smooth with stress -c 2 and make -j2 on my core 2 duo machine. i would say thats about 10 - 15 % performance gain for me. i also noticed that firefox' opening time is reduced by a second. impressive so far. its a noticeable improvement.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-45948407806066099542011-03-28T05:44:01.715+11:002011-03-28T05:44:01.715+11:00so wait, i can only use ondemand, conservative, an...so wait, i can only use ondemand, conservative, and userspace governors? those are the only ones i see in the patch.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-36110426500616688532011-03-28T05:35:56.923+11:002011-03-28T05:35:56.923+11:00nvm, i just used the cached version by searching t...nvm, i just used the cached version by searching the link on google. now, to try out this patch.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-74267408180903373982011-03-27T10:28:29.720+11:002011-03-27T10:28:29.720+11:00Not sure what the problem is, as it downloads fine...Not sure what the problem is, as it downloads fine here. If you're also wondering about the safety of this patch, I've been unable to break it so far but I thought it best to make it available as a test patch before releasing it as the new BFS. Likely I'll just change some comments in the patch and leave the actual code unchanged.ckhttps://www.blogger.com/profile/02904761195451530213noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-15604787203994584592011-03-27T05:49:40.592+11:002011-03-27T05:49:40.592+11:00although, i can't download it for some reason....although, i can't download it for some reason. problem loading page it says.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-71588784624379286142011-03-27T05:47:29.269+11:002011-03-27T05:47:29.269+11:00this is so awesome. can't wait for the final v...this is so awesome. can't wait for the final version. again, good job ck. always impressed by your work.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-72312925872595515052011-03-27T05:03:39.270+11:002011-03-27T05:03:39.270+11:00Hey ck, I'm super excited about this patch. I...Hey ck, I'm super excited about this patch. I too have noticed this issue. I get %30-%50 performance differences depending on which governor I select, and on CPU bound tasks. This looks like the right approach to fix the issue. Again, I'm excited!chogydanhttps://www.blogger.com/profile/09654041498028928274noreply@blogger.com