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c5.9
2017 Dec 01
3
gnu X sysv hash performance
I got curious how the lld produced gnu hash tables compared to gold. To
test that I timed "perf record ninja check-llvm" (just the lit run) in a
BUILD_SHARED_LIBS build.
The performance was almost identical, so I decided to try sysv versus
gnu (both produced by lld). The results are interesting:
% grep -v '^#' perf-gnu/perf.report-by-dso-sym | head
38.77% ld-2.24.so