Well, the xenofarm testing ("make verify") is considerably much more slow than a normal CVS build testing. It's been at it for 1h45 minutes now, which is pretty good since it's limited to 15 minutes by ulimit... Normal runtime is 1½ minute or so of cpu-time.
It is doing rtldebug and dmalloc though. Is dmalloc *that* slow?
Dmalloc in Pike 7.8 is ~10 times slower than the one in Pike 7.6. I'm right now attempting to find when it started getting slow (good opportunity to try git bisect...).