> > I did some benchmarking with/without multibyte support using current. > > (1) regression test > > (2) pgbench > > pgbench unfortunately seems quite irrelevant to this issue, since it > performs no textual operations whatsoever. It'd be interesting to > modify pgbench so that it updates the "filler" column somehow on each > update (perhaps store a text copy of the new balance there), and then > repeat the tests.
Ok. Here is the result: Without multibyte: 1 50.190473 2 65.943052 4 74.908752 8 62.589973 16 87.546988 32 94.448773 64 88.019452 128 64.107839 With multibyte: 1 47.473237 2 61.435628 4 83.047684 8 95.556846 16 92.157352 32 95.879001 64 91.486652 128 66.926568 a graph is attached.
bench2.png
Description: PNG image
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