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On Wed, Mar 18, 2020 at 04:35:47AM +0530, Manjeet Singh wrote: |
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> My name is Manjeet Singh, I am a 3rd year CSE student from Guru Gobind |
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> Singh Indraprastha University, Delhi, India |
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> |
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> for my GSOC 2020 I want to work on Openrc init system of Gentoo by |
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> improving its performance. Currently openrc is using a lot of tools and |
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> processes to start a simple service scripts (POSIX shell, |
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> start-stop-daemon, rc-depends, rc-sstat...) and use shell to parse init |
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> scripts. these things make openrc slow to start services and result in slow |
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> bootup, so idea is to develop some native tools for openrc that will parse |
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> the service scripts files, check prerequisites, start services daemons or |
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> commands. |
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> |
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> I used openrc under gentoo, and setup it on arch, void and lfs, and found |
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> it really awesome (i don't like systemd) and found openrc a better |
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> alternative of systemd. Also i already a simple and minimal service manager |
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> like tool that will parse a service file in INI format and start or stop a |
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> service. I will now trying to developed some similar tools for openrc to |
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> boost its performance and i found gsoc 2020 a better way to interact with |
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> this organization and develop this tools under proper guidance. |
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> |
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> any further guidelines about the possibilities and issue will be very |
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> helpful |
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> Thanks for the time and consideration |
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Before you can meaningfully improve it, you need to be able to measure |
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what you hope to change. |
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I'm not entirely convinced that openrc per se is slow: as a whole |
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however, it certainly the overall feeling that speedups could be |
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achieved. |
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That said, I feel like a lot of this project would be towards the prior |
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efforts in boot speedup in Gentoo: |
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- bootchart updates |
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- readahead-list |
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- see the source code on using audit system to capture more details |
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- openrc parallelization |
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- review of init script dependencies / slimming |
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Some of these were connected to previous GSOC efforts, so there's |
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certainly value here. |
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- Aim to measure the performance in a repeatable way (probably spin up |
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VMs repeatedly with as few external dependencies as possible) |
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- Instrument where that performance is actually slow |
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- Fix those parts |
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I'm not sure everything here could be achieved in one GSOC season, but |
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certainly the effort should probably be on the measurement & |
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instrumentation, rather than the fixing for the moment. |
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|
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-- |
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Robin Hugh Johnson |
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Gentoo Linux: Dev, Infra Lead, Foundation Treasurer |
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E-Mail : robbat2@g.o |
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GnuPG FP : 11ACBA4F 4778E3F6 E4EDF38E B27B944E 34884E85 |
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GnuPG FP : 7D0B3CEB E9B85B1F 825BCECF EE05E6F6 A48F6136 |
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