>>>> "Ben" == Ben Wing <ben(a)xemacs.org>
writes: 
    Ben> Raymond Toy wrote:
[snip]
    Ben> hmm.  well, the byte-char algorithm was changed between b18 and b19.
    Ben> but various other things changed between 18 and 22 as well.  could you
    Ben> try compiling b19 and see whether it gets slower or faster?  ideally,
    Ben> both b18 and b19 should be optimized, without error-checking.
From my old mails, I profiled b18 and b20; I never tried (or even
downloaded) b19 for some reason.
I'll give that a try soon.
And I see from my old mails, I tried b20 with the --disable-kkcc and
--disable-mc-alloc.  Still slow, but somewhat better.  Things got
better when I disabled error-checking, but still quite a bit slower.
Ray