Displaying 1 result from an estimated 1 matches for "p7945".
Did you mean:
17945
2016 Nov 27
3
A couple metrics of LLD/ELF's performance
...:
https://github.com/torvalds/linux/blob/f92b7604149a55cb601fc0b52911b1e11f0f2514/arch/x86/events/intel/core.c#L434
).
Here we also see the getVA codepath (which is basically doing a random
lookup into a huge hash table, so it will DTLB miss) and the memcpy into
the output.
https://reviews.llvm.org/P7945
--event=minor-faults
This metric essentially shows where new pages of memory are touched and
have to be either allocated by the kernel or it has to do a page table
fixup.
Here we see the memcpy into the output is a huge part. Also obviously lots
of minor faults as malloc allocates memory from the...