Jemalloc Prof Heap!

March 10, 2019 | 0 Minute Read

Install Jemalloc

-  bash autogen.sh
-  ./configure --enable_prof
-  make
-  make install

Export Linux Env

export MALLOC_CONF=”prof:true”,lg_prof_interval:30,lg_prof_sample:17

which writes a profile to disk after every 1 GB of allocations, and records a stack trace every 128 kB.

Run Program

Gen pdf

./jemalloc/bin/jeprof –show_bytes –pdf /home/a.out /home/jeprof.15790.1.i1.heap > /tmp/call.pdf