Yuya Nishihara ee6a1e2c0a working_copy: don't build intermediate HashMap from proto file states ... According to the doc, this is compatible with the map syntax. https://protobuf.dev/programming-guides/proto3/#maps This change means that the serialized file states are sorted by RepoPath, so BTreeMap<RepoPath, _> can be reconstructed with fewer cache misses. In my "linux" repo (watchman enabled): - jj-0: baseline - jj-1: this % hyperfine --sort command --warmup 3 --runs 10 -L bin jj-0,jj-1,jj-2 \ "target/release-with-debug/{bin} -R ~/mirrors/linux status" Benchmark 1: target/release-with-debug/jj-0 -R ~/mirrors/linux status Time (mean ± σ): 1.034 s ± 0.020 s [User: 0.881 s, System: 0.212 s] Range (min … max): 1.011 s … 1.068 s 10 runs Benchmark 2: target/release-with-debug/jj-1 -R ~/mirrors/linux status Time (mean ± σ): 849.3 ms ± 13.8 ms [User: 710.7 ms, System: 199.3 ms] Range (min … max): 821.7 ms … 870.2 ms 10 runs Relative speed comparison 1.32 ± 0.04 target/release-with-debug/jj-0 -R ~/mirrors/linux status 1.08 ± 0.03 target/release-with-debug/jj-1 -R ~/mirrors/linux status Cache-misses got reduced: % perf stat -e task-clock,cycles,instructions,cache-references,cache-misses \ -- ./target/release-with-debug/jj-0 -R ~/mirrors/linux --no-pager status 1,091.68 msec task-clock # 1.032 CPUs utilized 4,179,596,978 cycles # 3.829 GHz 6,166,231,489 instructions # 1.48 insn per cycle 134,032,047 cache-references # 122.776 M/sec 29,322,707 cache-misses # 21.88% of all cache refs 1.057474164 seconds time elapsed 0.897042000 seconds user 0.194819000 seconds sys % perf stat -e task-clock,cycles,instructions,cache-references,cache-misses \ -- ./target/release-with-debug/jj-1 -R ~/mirrors/linux --no-pager status 927.05 msec task-clock # 1.083 CPUs utilized 3,451,299,198 cycles # 3.723 GHz 6,222,418,272 instructions # 1.80 insn per cycle 98,499,363 cache-references # 106.251 M/sec 11,998,523 cache-misses # 12.18% of all cache refs 0.855938336 seconds time elapsed 0.720568000 seconds user 0.207924000 seconds sys		2023-11-20 08:29:33 +09:00
..
benches	cargo: rename crates from jujutsu/jujutsu-lib to jj-cli/jj-lib	2023-07-09 06:40:43 +02:00
gen-protos	Use { workspace = true } to appease VS Code's Cargo.toml parser	2023-08-22 21:38:53 -07:00
src	working_copy: don't build intermediate HashMap from proto file states	2023-11-20 08:29:33 +09:00
tests	git: have import_refs() obtain git2::Repository instance from store	2023-11-14 17:35:27 +09:00
testutils	sign: Implement storage for digital commit signatures	2023-11-12 03:37:13 +02:00
Cargo.toml	tree: make TreeEntriesDirItem not self-referential	2023-11-17 03:50:34 -08:00
LICENSE	cargo: add LICENSE file to each crate we publish	2023-09-22 21:48:28 -07:00