David Blaikie c6ebba3620 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.

llvm-svn: 307608

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

2017-07-06 19:00:12 +00:00

InstrProfWriter.h

llvm-profdata: Improve memory usage by tuning SmallDenseMap size

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

ProfileCommon.h

Prototype: Reduce llvm-profdata merge memory usage further

2017-07-06 19:00:12 +00:00

SampleProf.h

[ProfileData, Support] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-21 23:19:47 +00:00

SampleProfReader.h

[ProfileData, Support] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-21 23:19:47 +00:00

SampleProfWriter.h

Change sample profile writer to make it deterministic.

2017-05-11 23:43:44 +00:00