bundle install benchmark

[TaKO8Ki]

$ /usr/bin/time -v bundle install
Fetching gem metadata from https://rubygems.org/........
Resolving dependencies...
Bundle complete! 365 Gemfile dependencies, 699 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.
6 installed gems you directly depend on are looking for funding.
  Run `bundle fund` for details
        Command being timed: "bundle install"
        User time (seconds): 88.46
        System time (seconds): 1.27
        Percent of CPU this job got: 98%
        Elapsed (wall clock) time (h:mm:ss or m:ss): 1:31.00
        Average shared text size (kbytes): 0
        Average unshared data size (kbytes): 0
        Average stack size (kbytes): 0
        Average total size (kbytes): 0
        Maximum resident set size (kbytes): 607048
        Average resident set size (kbytes): 0
        Major (requiring I/O) page faults: 114
        Minor (reclaiming a frame) page faults: 159622
        Voluntary context switches: 20592
        Involuntary context switches: 87
        Swaps: 0
        File system inputs: 106304
        File system outputs: 41344
        Socket messages sent: 0
        Socket messages received: 0
        Signals delivered: 0
        Page size (bytes): 4096
        Exit status: 0

[TaKO8Ki]

bundle install with prefetch

Command being timed: "bundle install"
        User time (seconds): 257.73
        System time (seconds): 82.20
        Percent of CPU this job got: 461%
        Elapsed (wall clock) time (h:mm:ss or m:ss): 1:13.60
        Average shared text size (kbytes): 0
        Average unshared data size (kbytes): 0
        Average stack size (kbytes): 0
        Average total size (kbytes): 0
        Maximum resident set size (kbytes): 935656
        Average resident set size (kbytes): 0
        Major (requiring I/O) page faults: 78
        Minor (reclaiming a frame) page faults: 18533049
        Voluntary context switches: 1542624
        Involuntary context switches: 44171
        Swaps: 0
        File system inputs: 408
        File system outputs: 5291360
        Socket messages sent: 0
        Socket messages received: 0
        Signals delivered: 0
        Page size (bytes): 4096
        Exit status: 0

[TaKO8Ki]

Benchmark 1: Ruby
  Time (mean ± σ):     10.554 s ±  0.377 s    [User: 22.365 s, System: 7.058 s]
  Range (min … max):   10.146 s … 11.154 s    10 runs

Benchmark 2: Rust
  Time (mean ± σ):      6.328 s ±  0.174 s    [User: 19.326 s, System: 5.138 s]
  Range (min … max):    6.115 s …  6.620 s    10 runs

Summary
  Rust ran
    1.67 ± 0.08 times faster than Ruby

[TaKO8Ki]

❯ hyperfine --warmup 2 --command-name Ruby --prepare 'rm -rf Gemfile.lock vendor' 'bundle install -j 16' --command-name Rust --prepare 'rm -rf Gemfile.lock newvendor' './target/release/bundle_initm'
Benchmark 1: Ruby
  Time (mean ± σ):     100.886 s ±  1.453 s    [User: 238.000 s, System: 61.579 s]
  Range (min … max):   98.777 s … 102.917 s    10 runs

Benchmark 2: Rust
  Time (mean ± σ):     47.828 s ±  5.224 s    [User: 218.290 s, System: 42.391 s]
  Range (min … max):   45.202 s … 62.540 s    10 runs

Summary
  Rust ran
    2.11 ± 0.23 times faster than Ruby

[TaKO8Ki]