| Speaker Name | Nikanth Karthikesan |
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| Organization | Novell | |
| Type | Workout | |
| Slides | Click to download | |
Speed up boot through disk sorting |
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| Abstract | I have already experimented with recording the disk access patterns and relocating the disk blocks below the file-system using device mapper to avoid seeks, which can speed up things on hard-disks. The solution uses blktrace to capture the access pattern and later computes the optimal disk layout and then moves around the disk blocks and sets up device mapper tables to speed up the same work-load. Currently the tools(http://www.suse.de/~knikanth/disksort/) that does this is not fully-automated, nor optimal.I would like to improve the algorithm that computes the optimal layout. And also use this to optimize for certain work-loads such as boot-up, and other io-bound workloads such as start-up of heavy applications such as oo, gimp, ... |
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| Pre-requisites | Laptops with blkparse & device-mapper installed. Shouldn't be a problem if Internet is available. Laptops with root on LVM for boot optimization. People with spare hard-disk either internal/external would be welcome. optional: blktrace, device-mapper And possibly some use-cases what they want to optimize | |
| Speaker Profile | Born in Madras, India. An alumnus of NIT Trichy. He works as a Linux Kernel Engineer for Suse Labs, Novell mostly on the block layer, io schedulers and device-mapper. He spends his spare time developing/playing video games, and making videos. | |
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