llvm-project

Commit Graph

Author	SHA1	Message	Date
Vy Nguyen	e086a39c11	[llvm-exegesis] Let Counter returns up to 16 entries LBR contains (up to) 16 entries for last x branches and the X86LBRCounter (from D77422) should be able to return all those. Currently, it just returns the latest entry, which could lead to mis-leading measurements. This patch aslo changes the LatencyBenchmarkRunner to accommodate multi-value readings. https://reviews.llvm.org/D81050	2020-06-26 10:57:20 -04:00
Miloš Stojanović	24b7b99b7d	[llvm-exegesis][NFC] Disassociate snippet generators from benchmark runners The addition of `inverse_throughput` mode highlighted the disjointedness of snippet generators and benchmark runners because it used the `UopsSnippetGenerator` with the `LatencyBenchmarkRunner`. To keep the code consistent tie the snippet generators to parallelization/serialization rather than their benchmark runners. Renaming `LatencySnippetGenerator` -> `SerialSnippetGenerator`. Renaming `UopsSnippetGenerator` -> `ParallelSnippetGenerator`. Differential Revision: https://reviews.llvm.org/D72928	2020-01-20 16:19:13 +01:00

Author

SHA1

Message

Date

Vy Nguyen

e086a39c11

[llvm-exegesis] Let Counter returns up to 16 entries

LBR contains (up to) 16 entries for last x branches and the X86LBRCounter (from D77422) should be able to return all those.
    Currently, it just returns the latest entry, which could lead to mis-leading measurements.
    This patch aslo changes the LatencyBenchmarkRunner to accommodate multi-value readings.

         https://reviews.llvm.org/D81050

2020-06-26 10:57:20 -04:00

Miloš Stojanović

24b7b99b7d

[llvm-exegesis][NFC] Disassociate snippet generators from benchmark runners

The addition of `inverse_throughput` mode highlighted the disjointedness
of snippet generators and benchmark runners because it used the
`UopsSnippetGenerator` with the  `LatencyBenchmarkRunner`.
To keep the code consistent tie the snippet generators to
parallelization/serialization rather than their benchmark runners.

Renaming `LatencySnippetGenerator` -> `SerialSnippetGenerator`.
Renaming `UopsSnippetGenerator` -> `ParallelSnippetGenerator`.

Differential Revision: https://reviews.llvm.org/D72928

2020-01-20 16:19:13 +01:00

2 Commits