On Fri, May 30, 2014 at 10:20 AM, Stephan Beal <sgb...@googlemail.com> wrote:
> On Fri, May 30, 2014 at 3:36 AM, Warren Young <war...@etr-usa.com> wrote: > >> How much work does this test do compared to normal user operations? Say, >> a normal checkin, or a pull of the /tree URL from "fossil server"? >> > > Excellent question: the timing i showed is "all of the sanity tests," > which is almost (but not quite) at least one run of all of the basic > features, including creating a checkin, extracting all files from the > current version, and lots of other stuff which is, in practice, never run > together in the same execution. i.e. it's doing a lot more than any single > command does. > Okay, i was curious myself about this, so here are some rough comparisons for some basic single operations: Notes: a) pi is using an external USB 2.0 drive here because compiling anything on a SD card is just too pokey. b) These "f-xyz" calls are the libfossil CLI tools: http://fossil.wanderinghorse.net/repos/libfossil/index.cgi/wiki?name=f-tools - f-acat rid:1 pi: 0.34s laptop: 0.17s - f-resolve trunk pi: 0.77s laptop: 0.13s - f-zip tip foo.zip pi: 29.99s (!!!) laptop: 1.81s That one is very RAM-hungry ('massif' says peak RAM of 11MB, total allocated 175MB) - f-vdiff current prev pi: 0.29s laptop: 0.16s So, overall, the performance is actually much better than i might expect, but some operations (those which need lots of memory) are likely to cause swapping, which will slow it down notably. Today i discovered the ODROID-U3 platform, kind of like a "super-pi," and ordered one to play with. i'll post some numbers once that arrives (no idea when that will be). -- ----- stephan beal http://wanderinghorse.net/home/stephan/ http://gplus.to/sgbeal "Freedom is sloppy. But since tyranny's the only guaranteed byproduct of those who insist on a perfect world, freedom will have to do." -- Bigby Wolf
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