[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Performance issues with /gnu/store in virtual machines

From: Ludovic Courtès
Subject: Re: Performance issues with /gnu/store in virtual machines
Date: Tue, 22 Aug 2017 12:11:43 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux)

Hi Chris,

Christopher Baines <address@hidden> skribis:

>   1.13    0.000019           0      3853           openat


>  13.56    0.193014          50      3853           openat

So openat(2) is 4 orders of magnitude slower in the VM, which is a

I guess a large part of that is due to the fact that VM created with
‘guix system vm’ use unionfs as their root file system, which is a FUSE
thing (see the “volatile” options in (gnu system vm), (gnu system
linux-initrd), and (gnu build linux-boot).)  I’m not sure how we could
avoid it.

Can you confirm that the same ‘find’ command is faster in a full-blown
“guix system disk-image” VM?


reply via email to

[Prev in Thread] Current Thread [Next in Thread]