Benchmarks

The tracking page for benchmark changes for each commit during development.

Run cargo +nightly bench --features multi-thread in the root directory of this repository for benchmarking.

The following results are generated on Windows 10 64 bit and Intel i9-10900KF CPU @ 3.70GHz with cargo 1.83.0-nightly (ad074abe3 2024-10-04).

`spdlog-rs` (0.4.0)

Default features

test bench_1_file               ... bench:         163.62 ns/iter (+/- 11.70)
test bench_2_file_async         ... bench:         214.90 ns/iter (+/- 16.04)
test bench_3_rotating_file_size ... bench:         184.23 ns/iter (+/- 31.93)
test bench_4_rotating_daily     ... bench:         170.50 ns/iter (+/- 10.23)
test bench_5_level_off          ... bench:           1.60 ns/iter (+/- 0.08)

Enable flexible-string feature

test bench_1_file               ... bench:         143.55 ns/iter (+/- 7.91)
test bench_2_file_async         ... bench:         215.43 ns/iter (+/- 12.25)
test bench_3_rotating_file_size ... bench:         162.22 ns/iter (+/- 21.09)
test bench_4_rotating_daily     ... bench:         146.32 ns/iter (+/- 8.46)
test bench_5_level_off          ... bench:           1.23 ns/iter (+/- 0.02)

Compared with other Rust crates

Disclaimer

I'm not entirely familiar with using the other Rust crates below, so if you find a bug or something worth improving in the benchmark code, feel free to open an issue to let me know.

`tracing` (0.1.40)

test bench_1_file               ... bench:       2,316.25 ns/iter (+/- 107.55)
test bench_2_file_async         ... bench:         603.70 ns/iter (+/- 24.70)
test bench_3_rotating_file_size ...                   unavailable
test bench_4_rotating_daily     ... bench:       2,373.32 ns/iter (+/- 97.30)
test bench_5_level_off          ... bench:           0.41 ns/iter (+/- 0.00)

`slog` (2.7.0)

test bench_1_file                     ...                   unavailable
test bench_2_file_async               ... bench:         467.90 ns/iter (+/- 4.56)
test bench_3_rotating_file_size_async ... bench:         472.49 ns/iter (+/- 17.81)
test bench_4_rotating_daily           ...                   unavailable
test bench_5_level_off                ... bench:           1.81 ns/iter (+/- 0.14)

`flexi_logger` (0.29.2)

test bench_1_file               ... bench:       1,181.17 ns/iter (+/- 97.06)
test bench_2_file_async         ...                   unavailable
test bench_3_rotating_file_size ... bench:       1,192.97 ns/iter (+/- 44.88)
test bench_4_rotating_daily     ... bench:       1,587.54 ns/iter (+/- 59.07)
test bench_5_level_off          ... bench:           0.20 ns/iter (+/- 0.01)

`log4rs` (1.3.0)

test bench_1_file               ... bench:       2,882.34 ns/iter (+/- 85.30)
test bench_2_file_async         ...                   unavailable
test bench_3_rotating_file_size ... bench:       2,990.95 ns/iter (+/- 189.15)
test bench_4_rotating_daily     ...                   unavailable
test bench_5_level_off          ... bench:           0.20 ns/iter (+/- 0.01)

`fern` (0.6.2)

test bench_1_file               ... bench:       2,896.02 ns/iter (+/- 259.27)
test bench_2_file_async         ...                   unavailable
test bench_3_rotating_file_size ...                   unavailable
test bench_4_rotating_daily     ...                   unavailable
test bench_5_level_off          ... bench:           0.20 ns/iter (+/- 0.02)

`ftlog` (0.2.14)

test bench_1_file               ...                   unavailable
test bench_2_file_async         ... bench:         254.47 ns/iter (+/- 16.07)
test bench_3_rotating_file_size ...                   unavailable
test bench_4_rotating_daily     ... bench:         253.33 ns/iter (+/- 19.89)
test bench_5_level_off          ... bench:           0.20 ns/iter (+/- 0.01)

`fast_log` (1.7.4)

test bench_1_file                     ...                   unavailable
test bench_2_file_async               ... bench:         249.25 ns/iter (+/- 2,917.45)
test bench_3_rotating_file_size_async ... bench:         270.89 ns/iter (+/- 753.87)
test bench_4_rotating_daily_async     ... bench:         640.79 ns/iter (+/- 543.36)
test bench_5_level_off                ... bench:           0.20 ns/iter (+/- 0.02)

Compared with C++ spdlog

`spdlog-rs` (0.4.0)

Default features (corresponds to C++ spdlog using standard <format>)

Sync

[info] **********************************************************************
[info] Multi threaded: 1 threads, 250000 messages
[info] **********************************************************************
[info] basic_mt                       Elapsed: 0.07 secs          3748502/sec
[info] rotating_mt                    Elapsed: 0.07 secs          3790491/sec
[info] daily_mt                       Elapsed: 0.07 secs          3815902/sec
[info] level-off                      Elapsed: 0.00 secs        488949735/sec
[info] **********************************************************************
[info] Multi threaded: 4 threads, 250000 messages
[info] **********************************************************************
[info] basic_mt                       Elapsed: 0.05 secs          5542241/sec
[info] rotating_mt                    Elapsed: 0.06 secs          4130975/sec
[info] daily_mt                       Elapsed: 0.06 secs          4545066/sec
[info] level-off                      Elapsed: 0.00 secs        550055005/sec

Async

[info] --------------------------------------------
[info] Messages     : 1000000
[info] Threads      : 10
[info] Queue        : 8192 slots
[info] Queue memory : 8192 x 112 = 896 KB
[info] Total iters  : 3
[info] --------------------------------------------
[info]
[info] ********************************************
[info] Queue Overflow Policy: Block
[info] ********************************************
[info] Elapsed: 0.4002621 secs   2498362/sec
[info] Elapsed: 0.3905976 secs   2560179/sec
[info] Elapsed: 0.3966882 secs   2520871/sec
[info]
[info] ********************************************
[info] Queue Overflow Policy: DropIncoming
[info] ********************************************
[info] Elapsed: 0.0832805 secs   12007612/sec
[info] Elapsed: 0.0836786 secs   11950486/sec
[info] Elapsed: 0.0828995 secs   12062798/sec

Enable flexible-string feature (corresponds to C++ spdlog using fmt library)

Sync

[info] **********************************************************************
[info] Multi threaded: 1 threads, 250000 messages
[info] **********************************************************************
[info] basic_mt                       Elapsed: 0.06 secs          4402175/sec
[info] rotating_mt                    Elapsed: 0.06 secs          4045543/sec
[info] daily_mt                       Elapsed: 0.06 secs          4188222/sec
[info] level-off                      Elapsed: 0.00 secs        442243056/sec
[info] **********************************************************************
[info] Multi threaded: 4 threads, 250000 messages
[info] **********************************************************************
[info] basic_mt                       Elapsed: 0.05 secs          4885541/sec
[info] rotating_mt                    Elapsed: 0.06 secs          4344448/sec
[info] daily_mt                       Elapsed: 0.06 secs          4350549/sec
[info] level-off                      Elapsed: 0.00 secs        514721021/sec

Async

[info] --------------------------------------------
[info] Messages     : 1000000
[info] Threads      : 10
[info] Queue        : 8192 slots
[info] Queue memory : 8192 x 112 = 896 KB
[info] Total iters  : 3
[info] --------------------------------------------
[info]
[info] ********************************************
[info] Queue Overflow Policy: Block
[info] ********************************************
[info] Elapsed: 0.380146 secs    2630568/sec
[info] Elapsed: 0.3686135 secs   2712868/sec
[info] Elapsed: 0.3628417 secs   2756022/sec
[info]
[info] ********************************************
[info] Queue Overflow Policy: DropIncoming
[info] ********************************************
[info] Elapsed: 0.0852181 secs   11734596/sec
[info] Elapsed: 0.0864404 secs   11568664/sec
[info] Elapsed: 0.0889495 secs   11242334/sec

C++ `spdlog` (1.14.1)

Compiler MSVC 19.41.34120.0.

Using standard <format> (compiled with cmake -G "Visual Studio 17 2022" -A x64 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=20 -DCMAKE_CXX_STANDARD_REQUIRED=ON -DSPDLOG_BUILD_BENCH=ON -DSPDLOG_BUILD_EXAMPLE=OFF -DSPDLOG_USE_STD_FORMAT=ON)

Sync

[info] **************************************************************
[info] Multi threaded: 1 threads, 250,000 messages
[info] **************************************************************
[info] basic_mt                       Elapsed: 0.12 secs        2,057,294/sec
[info] rotating_mt                    Elapsed: 0.13 secs        1,878,038/sec
[info] daily_mt                       Elapsed: 0.12 secs        2,051,127/sec
[info] level-off                      Elapsed: 0.00 secs      151,515,151/sec
[info] **************************************************************
[info] Multi threaded: 4 threads, 250,000 messages
[info] **************************************************************
[info] basic_mt                       Elapsed: 0.18 secs        1,387,633/sec
[info] rotating_mt                    Elapsed: 0.18 secs        1,355,687/sec
[info] daily_mt                       Elapsed: 0.19 secs        1,347,550/sec
[info] level-off                      Elapsed: 0.00 secs      148,086,719/sec

Async

[info] -------------------------------------------------
[info] Messages     : 1000000
[info] Threads      : 10
[info] Queue        : 8192 slots
[info] Queue memory : 8192 x 176 = 1408 KB
[info] Total iters  : 3
[info] -------------------------------------------------
[info]
[info] *********************************
[info] Queue Overflow Policy: block
[info] *********************************
[info] Elapsed: 2.8654663 secs   348983/sec
[info] Elapsed: 2.8504903 secs   350816/sec
[info] Elapsed: 2.8458098 secs   351393/sec
[info]
[info] *********************************
[info] Queue Overflow Policy: overrun
[info] *********************************
[info] Elapsed: 1.8782355 secs   532414/sec
[info] Elapsed: 1.8402441 secs   543406/sec
[info] Elapsed: 1.8303429 secs   546345/sec

Using fmt library (compiled with cmake -G "Visual Studio 17 2022" -A x64 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=20 -DCMAKE_CXX_STANDARD_REQUIRED=ON -DSPDLOG_BUILD_BENCH=ON -DSPDLOG_BUILD_EXAMPLE=OFF)

Sync

[info] **************************************************************
[info] Multi threaded: 1 threads, 250,000 messages
[info] **************************************************************
[info] basic_mt                       Elapsed: 0.07 secs        3,503,397/sec
[info] rotating_mt                    Elapsed: 0.08 secs        3,310,394/sec
[info] daily_mt                       Elapsed: 0.08 secs        3,160,360/sec
[info] level-off                      Elapsed: 0.00 secs      138,881,173/sec
[info] **************************************************************
[info] Multi threaded: 4 threads, 250,000 messages
[info] **************************************************************
[info] basic_mt                       Elapsed: 0.12 secs        2,091,563/sec
[info] rotating_mt                    Elapsed: 0.13 secs        1,886,654/sec
[info] daily_mt                       Elapsed: 0.13 secs        1,891,844/sec
[info] level-off                      Elapsed: 0.00 secs      139,883,616/sec

Async

[info] -------------------------------------------------
[info] Messages     : 1000000
[info] Threads      : 10
[info] Queue        : 8192 slots
[info] Queue memory : 8192 x 432 = 3456 KB
[info] Total iters  : 3
[info] -------------------------------------------------
[info]
[info] *********************************
[info] Queue Overflow Policy: block
[info] *********************************
[info] Elapsed: 2.5994468 secs   384697/sec
[info] Elapsed: 2.6129828 secs   382704/sec
[info] Elapsed: 2.6062268 secs   383696/sec
[info]
[info] *********************************
[info] Queue Overflow Policy: overrun
[info] *********************************
[info] Elapsed: 1.8697969 secs   534817/sec
[info] Elapsed: 1.8636448 secs   536582/sec
[info] Elapsed: 1.8804087 secs   531799/sec

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README.md

README.md

Benchmarks

`spdlog-rs` (0.4.0)

Disclaimer

`tracing` (0.1.40)

`slog` (2.7.0)

`flexi_logger` (0.29.2)

`log4rs` (1.3.0)

`fern` (0.6.2)

`ftlog` (0.2.14)

`fast_log` (1.7.4)

`spdlog-rs` (0.4.0)

C++ `spdlog` (1.14.1)

Files

README.md

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README.md

File metadata and controls

Benchmarks

spdlog-rs (0.4.0)

Disclaimer

tracing (0.1.40)

slog (2.7.0)

flexi_logger (0.29.2)

log4rs (1.3.0)

fern (0.6.2)

ftlog (0.2.14)

fast_log (1.7.4)

spdlog-rs (0.4.0)

C++ spdlog (1.14.1)

`spdlog-rs` (0.4.0)

`tracing` (0.1.40)

`slog` (2.7.0)

`flexi_logger` (0.29.2)

`log4rs` (1.3.0)

`fern` (0.6.2)

`ftlog` (0.2.14)

`fast_log` (1.7.4)

`spdlog-rs` (0.4.0)

C++ `spdlog` (1.14.1)