4 ms·
No explanation why Ubuntu is 10-30% faster in most of the benchmarks? That's a lot. Maybe something to do with better spectre/meltdown mitigations in the newer
by user5994461 7y ago
No explanation why Ubuntu is 10-30% faster in most of the benchmarks? That's a lot.
Maybe something to do with better spectre/meltdown mitigations in the newer kernel?
- skibz 7y agoPage one of the article explains how the rig was configured, noting various security things. https://www.phoronix.com/scan.php?page=article&item=xeonr-ubu1804-2004&num=1 https://www.phoronix.com/scan.php?page=article&item=xeonr-ub... https://openbenchmarking.org/embed.php?i=2003242-NI-XEONCASCA60&sha=93568c9&p=2 https://openbenchmarking.org/embed.php?i=2003242-NI-XEONCASC...
- fsh 7y agoIt's worth keeping in mind that they are running benchmarks on a massive dual-socket 48 core machine where slight tweaks of the scheduler can have a big effect. I would be very surprised to see such big differences on a normal desktop or server.
- simfoo 7y agoWhat's a little confusing is that they are not testing the same versions of the software but (presumably) the distro default version. So these benchmarks are not useful to test kernel and lower level performance differences.
- pmontra 7y agoTheir goal was testing two versions of Ubuntu (as per the title), that includes every difference between them. Example: Ubuntu 18.04 upgrades Linux up to version 5.3, Ubuntu 20.04 comes with 5.4. There are several other upgrades. They are listed in the first page of the post.
- hajile 7y agoMost of it seems to be down to newer packages and newer compiler versions.
- ASalazarMX 7y agoThose are part of the release, otherwise you'd better test different kernels on 18.10.
- slantyyz 7y agoWould this possibly explain some of the speed improvements? https://arstechnica.com/gadgets/2019/11/ubuntu-19-10-quite-simply-the-best-ubuntu-canonical-has-ever-released/ https://arstechnica.com/gadgets/2019/11/ubuntu-19-10-quite-s...