Исходное сообщение
"Выпуск языка программирования Rust 1.38" Отправлено Аноним84701, 28-Сен-19 00:31
> Как там насчёт сравнения с The Silver Searcher (ag), написанном на C? >> Regex searching uses PCRE's JIT compiler (if Ag is built with PCRE >=8.21). Угу, угу. % ag --version                                                                           ag version 2.2.0 Features:   +jit +lzma +zlib % rg --version ripgrep 11.0.2 +SIMD -AVX (compiled) # это конечно круто, но AVX тута вот нема :) +SIMD -AVX (runtime) % time rg -uuui "sizeof\([a-z].*[0-9]\)" /somelargeproject |wc -l    11691 rg -uuui "sizeof\([a-z].*[0-9]\)" /somelargeproject  3,46s user 3,29s system 376% cpu 1,795 total % time rg -i "sizeof\([a-z].*[0-9]\)" /somelargeproject |wc -l    11687 rg -i "sizeof\([a-z].*[0-9]\)" /somelargeproject  3,61s user 3,10s system 377% cpu 1,777 total % time ag -iur "sizeof\([a-zA-Z].*[0-9]\)" /somelargeproject |wc -l    11691 ag -iur "sizeof\([a-zA-Z].*[0-9]\)" /somelargeproject  3,39s user 3,88s system 350% cpu 2,073 total wc -l  0,00s user 0,03s system 1% cpu 2,068 total % 3,24s user 4,40s system 353% cpu 2,161 total % 3,39s user 3,88s system 350% cpu 2,073 total без опции -u (11687 результатов) 3,01s user 3,65s system 337% cpu 1,975 total 3,05s user 3,35s system 339% cpu 1,883 total три прогона % time rg -uuui uint16 /somelargeproject |wc -l                                                      40925 rg -uuui uint16 /somelargeproject  2,50s user 3,08s system 372% cpu 1,497 total wc -l  0,01s user 0,03s system 2% cpu 1,492 total % time ag -iur uint16 /somelargeproject|wc -l    40925 ag -iur uint16 /somelargeproject  3,36s user 3,52s system 284% cpu 2,416 total wc -l  0,00s user 0,03s system 1% cpu 2,411 total % 3,23s user 3,48s system 282% cpu 2,372 total % 3,16s user 3,70s system 286% cpu 2,398 total немного синтетики: % seq 100000000 > testit  # tmpfs % echo foobar >> testit % time ag -ic f testit 1        # посл. строчки с reзультатом я вырезал - итак слишком длинная простыня получилась ag -ic f testit  6,72s user 0,14s system 99% cpu 6,871 total %2 6,73s user 0,17s system 99% cpu 6,908 total %3  6,63s user 0,14s system 99% cpu 6,785 total % time grep -ic f testit /usr/bin/grep --color=auto -ic f testit  2,06s user 0,31s system 99% cpu 2,375 total % time rg -ic f testit rg -ic f testit  0,31s user 0,22s system 99% cpu 0,533 total ========= % time ag -ic foobar testit ag -ic foobar testit  0,61s user 0,14s system 99% cpu 0,754 total %2  0,78s user 0,22s system 99% cpu 1,004 total %3  0,69s user 0,21s system 99% cpu 0,903 total % time rg -ic foobar testit rg -ic foobar testit  0,80s user 0,17s system 99% cpu 0,974 total %2  0,78s user 0,13s system 99% cpu 0,908 total %3  0,69s user 0,18s system 99% cpu 0,879 total % time /usr//bin/grep -ic foobar testit /usr/bin/grep -ic foobar testit  2,21s user 0,23s system 99% cpu 2,445 total %2  2,27s user 0,23s system 99% cpu 2,496 total %3 2,24s user 0,24s system 99% cpu 2,479 total ========== % time rg -ic 1 testit   56953280 rg -ic 1 testit  6,52s user 0,13s system 99% cpu 6,663 total % time /usr/bin/grep -ic 1 testit 56953280 /usr/bin/grep -ic 1 testit  4,49s user 0,31s system 99% cpu 4,803 total % time ag -ic 1 testit 80000001 # похоже, оно считает не строки, а кол. матчей ag -ic 1 testit  8,14s user 1,04s system 99% cpu 9,188 total ========= # далее по просты^W тексту просто взято лучшее время из 3 запусков ========= % time ag -ic "12.[1-3]4" testit 119940 ag -ic "12.[1-3]4" testit  1,75s user 0,14s system 99% cpu 1,899 total % time /usr/bin/grep -ic "12.[1-3]4" testit /usr/bin/grep -ic "12.[1-3]4" testit  2,58s user 0,25s system 99% cpu 2,843 total % time rg -ic "12.[1-3]4" testit rg -ic "12.[1-3]4" testit  2,49s user 0,11s system 99% cpu 2,606 total =========== % time /usr/bin/grep -ic "^1" testit 11111112 /usr/bin/grep -ic "^1" testit  2,68s user 0,27s system 99% cpu 2,971 total % time ag -ic "^1" testit ag -ic "^1" testit  2,27s user 0,27s system 99% cpu 2,546 total % time rg -ic "^1" testit rg -iuuc "^1" testit  9,93s user 0,13s system 99% cpu 10,057 total =========== % time rg -ic "1001" testit 49979 rg -ic "1001" testit  1,15s user 0,16s system 99% cpu 1,313 total % time ag -ic "1001" testit 49980 ag -ic "1001" testit  0,74s user 0,23s system 99% cpu 0,974 total % time /usr/bin/grep -ic "1001" testit 49979 /usr/bin/grep -ic "1001" testit  2,56s user 0,31s system 99% cpu 2,870 total