IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 4 April 2024 (all times are UTC)
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| 05:34 | <alkisg> MUHWALT: you can cache all the disk locally with a plain dd command, you don't need to waste all your RAM with it
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| 05:35 | I.e. image_to_ram doesn't have any performance benefit at all; it's just for kiosks that need to function even without an ltsp server
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| 12:51 | <MUHWALT> That's assuming the client has a disk
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| 12:51 | none of mine do
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| 16:33 | <alkisg> MUHWALT: no, dd if=/dev/loop0 of=/dev/null caches the image in RAM
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| 16:34 | A plain read stores the disk pages in RAM in Linux. And the best part is that if you actually need the RAM later on, it'll discard the pages that haven't been accessed for a while
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| 16:34 | Search github issues, the exact command is listed somewhere there
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| 16:35 | ...or just put a POST_SERVICE_CACHE="dd if=/dev/loop0 of=/dev/null bs=4M"
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| 16:35 | ...maybe with a & at the end, to backgroudn it
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| 16:36 | <MUHWALT> oh, I see what you're saying
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| 16:36 | Thanks!
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