TDB historical performance (with pretty graphs)
rusty at rustcorp.com.au
Thu Jun 18 04:48:48 GMT 2009
I've been doing some measurements on tdb performance, mainly to see if all
the additions since the old code (eg. transactions, hasnfn) have caused
noticeable slowdown. Was a bit of a pain to compile all the versions (git
didn't seem to figure out all those source moves), and so some are missing, but
I was interested in trends.
There's no significant slowdown trend, but some changes have made real
performance differences. But there's still room for improvement: we seem to
suck recently on the "replace 5000 4byte key 4 byte date records with 8 byte
dataa records" but I can't immediately see why: 1024-byte key/4 byte data
records are better than ever.
So enjoy the prettiness!
PS. Tests were run on a 64-bit x86 system; values are total usecs.
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