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Date: Fri, 23 May 2014 22:14:42 +0900 From: Akira Hayakawa <ruby.wktk@...il.com> To: dm-devel@...hat.com CC: linux-kernel@...r.kernel.org, masami.hiramatsu@...il.com, devel@...ukata.com Subject: Re: dm-writeboost: Progress Report Hi Guys, This progress report includes very important benchmarking results, which shows i) Write will always improve - It boosts writes (396% in the best case) even with really small cache (say, 64MB) because of the sophisticated writeback optimization. ii) Read won't be bad - It doesn't so much deteriorate the read (less than 1% for SSD+HDD case) because of the insignificant overhead. iii) Good in application workloads - 22% improvement with read-intensive workload and 234-299% improvement with fileserver workload (using dbench) Yeah, merging Writeboost into the mainline is my goal now and I really need your feedbacks. For more details, please read the previous post. Cheers, - Akira -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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