On Mon, Oct 6, 2014 at 8:07 AM, Stephen Gallagher <sgallagh@xxxxxxxxxx> wrote: [ . . . ] > > It would be nice to see if we can find ways to improve the performance > of the deltarpm reconstruction instead. Much of the time is spent on > compression/decompression tasks which *should* be massively parallel; we > should be able to speed this up by taking advantage of additional cores > (and hyperthreading) on the system, for example. Another option might be > not to bother recompressing the RPMs but instead just install an > uncompressed RPM (and possibly recompress it out of band if we needed to > keep it in the cache). > export XZ_OPT=T0 If that were enabled in the environment the XZ compression phase would be significantly faster. -- -Jon Disnard -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
