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   杉田匠 (tacumi@social.pseudo-whiskey.bar)'s status on Sunday, 21-Aug-2022 17:50:50 JST 杉田匠

   なんかすごいZFSというのの強さを教えてもらった、でもメモリバカ食いするという噂があるんだけど。

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     ozy (rand@port.mk)'s status on Sunday, 21-Aug-2022 18:01:17 JST ozy

     in reply to

     @tacumi@social.pseudo-whiskey.bar ZFS ARC can use lots of memory, but by default it backs off when either the internal memory limit is hit or when the system memory is full so it won't affect usage
     
     ARC also performs better than other cache because it invalidates based on usage so cache hit rate is much higher
     
     https://github.com/openzfs/zfs/blob/master/module/zfs/arc.c

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     ozy (rand@port.mk)'s status on Sunday, 21-Aug-2022 18:01:17 JST ozy

     in reply to

     @tacumi@social.pseudo-whiskey.bar note that on FreeBSD 13.0-RELEASE this appears to be broken and I've had OOM when copying large amounts of data however this problem was not seen on Linux and most likely fixed in FreeBSD 13.1-RELEASE

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     杉田匠 (tacumi@social.pseudo-whiskey.bar)'s status on Sunday, 21-Aug-2022 18:03:49 JST 杉田匠

     in reply to

     • ozy

     @rand@port.mk Thank you for information. ZFS will be my main file system.