Good day!
Let's execute
pcre2test -tm 1000 input.txt output.txt
input.txt contains two copies of same pattern/subject. But second compiled
with JIT:
/a.*/s
a\[0123456789]{200000}
/a.*/s,jit
a\[0123456789]{200000}
Here is output.txt (capture is excluded):
PCRE2 version 10.33 2019-04-16
/a.*/s
a\[0123456789]{200000}
Match time 0.0010 milliseconds
/a.*/s,jit
a\[0123456789]{200000}
Match time 1.2800 milliseconds
We can see that JIT-version is about 1000 times slower. Moreover, non-JIT
version time don't depend from subject length. But JIT-version is. That's
why larger subject cause slower match.
As I told with user of PCRE 8.XX there is no such JIT-regression with that
PCRE version.
Thanks.
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