K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2018-04-24T01:06:20.194366Z
K 7
svn:log
V 253
dtrace: depessimize dtmalloc when dtrace is active

Each malloc/free was testing dtrace_malloc_enabled and forcing
extra reads from the malloc type struct to see if perhaps a
dtmalloc probe was on.

Treat it like lockstat and sdt: have a global bolean.

END