IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 21 September 2019 (all times are UTC)
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| 09:17 | kjackal has joined IRC (kjackal!~quassel@nat/canonical/x-rlexnjsqevvhvrjm) | |
| 09:48 | <fiesh> alkisg: it takes, I just measured it, a little under 6 seconds to start firefox on my laptop from 2011
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| 09:49 | but that's ssd, not hdd, of course
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| 10:32 | <alkisg> fiesh: yeah it's mostly about disk IO, hence my proposal to use local ssds/sticks whenever available
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| 10:33 | I managed to exactly pinpoint the nfs issue; it partly affects nbd/sshfs too; so expect nice speedups in the new ltsp :)
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| 10:38 | In numbers: booting ext4-over-nfs without the patch required 1160MB traffic, with the patch it requires 221MB traffic
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| 10:38 | That's a *big* speed up :)
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| 10:52 | <Hyperbyte> Nice. :-)
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| 10:56 | <alkisg> https://bugzilla.kernel.org/show_bug.cgi?id=204939
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| 11:28 | <Hyperbyte> Good stuff!
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| 11:28 | <alkisg> (it affects nbd/sshfs too, though to a lesser degree)
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| 13:58 | Aaaah, and that's also probably the reason NBD_SWAP sucks so much
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| 14:01 | By limiting readahead for all the other filesystems too (squashfs etc), traffic went from initial 1160 MB to 221 MB after NFS limit to 144 MB after all limits. Impressive!
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| 14:40 | <quinox> wow
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| 15:44 | <ogra> just make sure all your files are 15MB or greater .. tsk ...
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| 15:44 | :)
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| 20:15 | <fiesh> wow
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| 20:15 | that's quite the difference
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