Andreas Enge <andr...@enge.fr> skribis: > On Fri, Dec 04, 2015 at 03:44:38PM +0100, Ludovic Courtès wrote: >> Are you saying that xz-compressing TeX Live to resend it to >> hydra.gnu.org is too CPU-intensive? > > That depends on your definition of "too". In any case, on the Novena board > with an SSD attached, CPU is the limiting factor during this phase, > pushing the CPU load on one core to 100% (while the other cores are idle).
OK. >> Another option would be to trade compression ratio for reduced CPU usage >> by using, say, ‘xz -2’ or ‘gzip’. >> We did something similar in 5ef9d7d to reduce CPU consumption on the >> front-end. Usually it’s much less important to reduce CPU consumption >> on the build machines, but your experience seems to suggest otherwise. > > If possible, it would be more interesting to leverage the several cores > and not make sacrifices on the compression quality. It’s not necessarily the best option to increase throughput: the build machine may be busy building other things, and thus unable to dedicate all its cores to compression. Dunno. Ludo’.
