Re: [TUHS] SunOS code?

On Fri, Aug 31, 2018 at 07:02:36PM -0400, Arthur Krewat wrote: I did some updating of lmbench [*] when I was dancing with Netflix. I need to check that in and publish that because the bits have rotted since 1995. I have no idea if that will measure what you want, it's a bunch of microbenchmarks that measure bandwidth and latency of everything I could think of: network, disks, file systems, caches, memory, etc. It's interesting but might not be so to you. If you want to know if Solaris is at the same place as Linux, I can pretty much promise it is not in the "getting out of the way of the application". Solaris was known as Slowaris for a reason. Yeah, I know it sucked harder in the beginning, but those were order of magnitude suckages. Linus always cared about performance, he had a big hand in lmbench, we both cared. Linus was about performance like I am about code size. I ran the BitKeeper dev team for almost 20 years. I loved a changeset that removed more lines than it added. We got up to about 120K lines of code in the core and then we stayed there for the next decade, added so much more stuff but always found a way to delete stuff so we didn't get bloated. But all that said, you need to be specific about what perf you care about. These days the kernel is far more complicated, NUMA etc, and you might care about parallel make (I doubt it) or you might care about Oracle or something like that. --lm [*] http://mcvoy.com/lm/papers/lmbench-usenix.pdf