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| author | Ludovic Courtès <ludo@gnu.org> | 2021-03-14 15:05:30 +0100 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2021-03-21 23:41:01 +0100 |
| commit | 9da5ec7099b992a8969a17627548cd341c01bd90 (patch) | |
| tree | 82fa6307254029d42c3af67878c5f89dbdbc7164 /gnu.scm | |
| parent | 5f9b28b231e17749d14a1b95ae9cad68d7315a1e (diff) | |
| download | guix-9da5ec7099b992a8969a17627548cd341c01bd90.tar.gz guix-9da5ec7099b992a8969a17627548cd341c01bd90.zip | |
substitute: Choose compression method based on past CPU usage.
This stems from the observation that substitute download can be
CPU-bound when high-speed networks are in use:
https://lists.gnu.org/archive/html/guix-devel/2020-12/msg00177.html
* guix/narinfo.scm (decompresses-faster?): New procedure.
(narinfo-best-uri): Add #:fast-decompression?.
* guix/scripts/substitute.scm (%prefer-fast-decompression?): New
variable.
(call-with-cpu-usage-monitoring): New procedure.
(with-cpu-usage-monitoring): New macro.
(display-narinfo-data, process-substitution): Pass #:fast-decompression?
to 'narinfo-best-uri'.
(process-substitution): Wrap 'restore-file' call in
'with-cpu-usage-monitoring'. Set '%prefer-fast-decompression?'.
Diffstat (limited to 'gnu.scm')
0 files changed, 0 insertions, 0 deletions