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offload: Increase default 'overload-threshold' value.

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When offloading to a single machine, the previous default value would
lead 'guix offload' to wait possibly for several minutes between
subsequent builds until normalized load would finally go below 0.6.
Increasing it mitigates that.

* guix/scripts/offload.scm (<build-machine>)[overload-threshold]: Bump
to 0.8.
* doc/guix.texi (Daemon Offload Setup): Likewise.
This commit is contained in:
Ludovic Courtès 2022-11-23 19:32:04 +01:00
parent 02a4e54250
commit d33ed58169
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2 changed files with 2 additions and 2 deletions
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doc/guix.texi
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@ -1409,7 +1409,7 @@ when transferring files to and from build machines.
File name of the Unix-domain socket @command{guix-daemon} is listening
to on that machine.
@item @code{overload-threshold} (default: @code{0.6})
@item @code{overload-threshold} (default: @code{0.8})
The load threshold above which a potential offload machine is
disregarded by the offload scheduler. The value roughly translates to
the total processor usage of the build machine, ranging from 0.0 (0%) to

2
guix/scripts/offload.scm
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@ -112,7 +112,7 @@ (define-record-type* <build-machine>
;; A #f value tells the offload scheduler to disregard the load of the build
;; machine when selecting the best offload machine.
(overload-threshold build-machine-overload-threshold ; inexact real between
(default 0.6)) ; 0.0 and 1.0 | #f
(default 0.8)) ; 0.0 and 1.0 | #f
(parallel-builds build-machine-parallel-builds ; number
(default 1))
(speed build-machine-speed ; inexact real