archived-llvm

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Files

David Blaikie 1b67e9a22a llvm-profdata: Improve memory usage by tuning SmallDenseMap size

This takes memory usage from 5.1GB to 970MB - it could go further by
using a small size of 2 instead of the default of 4, but given the
rather high cost of going over this limit by much, I figured a little
slosh would be worth the ~130MB of memory usage.

& this'll might not be such a big deal if we use a custom slab allocator
for the DenseMaps here anyway

While the vast majority (99.9%) of records use only 1 entry, the tuning
parameter to SmallDenseMap is the the number of buckets, not the number
of entries - so a small size of 1 wasn't useful, even for 1 element, it
would tip over into allocating (much, 64 slots worth) more space - none
of them ended up small.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307608 91177308-0d34-0410-b5e6-96231b3b80d8

2017-07-11 01:18:28 +00:00

Coverage

[Coverage] Remove two overloads of CoverageMapping::load. NFC.

2017-06-30 00:45:26 +00:00

InstrProf.h

llvm-profdata: Reduce memory usage by using Error callback rather than member

2017-07-10 03:04:59 +00:00

InstrProfData.inc

[ProfileData] Unify getInstrProf*SectionName helpers

2017-04-15 00:09:57 +00:00

InstrProfReader.h

Prototype: Reduce llvm-profdata merge memory usage further