Update doc/benchmarks.md
diff --git a/doc/benchmarks.md b/doc/benchmarks.md
index 00b8e48..332a3a5 100644
--- a/doc/benchmarks.md
+++ b/doc/benchmarks.md
@@ -5,20 +5,34 @@
"Mimic" tests check that Wuffs' output mimics (i.e. exactly matches) other
libraries' output. "Mimic" benchmarks give the numbers for those other
-libraries, as shipped with Debian. These were measured on a Debian Testing
-system as of October 2019, which meant these compiler versions:
+libraries, as shipped with Debian. These were measured on a Debian Bullseye
+system as of September 2022, which meant these compiler versions:
-- clang/llvm 8.0.1
-- gcc 9.2.1
+- clang/llvm 11.0.1
+- gcc 10.2.1
-and these "mimic" library versions, all written in C:
+and these popular "mimic" library versions, all written in C:
-- libgif 5.1.4
-- zlib 1.2.11
+- libbz2 1.0.8
+- libgif 5.1.9
+- libpng 1.6.37
+- zlib 1.2.11 (we'll call this "ztl" or "zlib the library", as opposed to "zlib
+ the format")
-Unless otherwise stated, the numbers below were measured on an Intel x86\_64
-Broadwell, and were taken as of Wuffs git commit ffdce5ef "Have bench-rust-gif
-process animated / RGBA images".
+and these alternative "mimic" library versions, again all written in C:
+
+- [libdeflate](https://github.com/ebiggers/libdeflate) 1.7.1
+- [libspng](https://github.com/randy408/libspng) 0.7.3
+- [lodepng](https://github.com/lvandeve/lodepng) 20220717
+- [miniz](https://github.com/richgel999/miniz) 2.2.0
+- [stb](https://github.com/nothings/stb) 2.27
+
+Unless otherwise stated, the numbers below were taken as of Wuffs git commit
+315b2e52 "wuffs gen -version=0.3.0-rc.1", the first Wuffs v0.3 release
+candidate. As for the CPU model:
+
+ $ cat /proc/cpuinfo | grep model.name | uniq
+ model name: Intel(R) Core(TM) i5-10210U CPU @ 1.60GHz
## Reproducing
@@ -89,65 +103,110 @@
The `1k`, `10k`, etc. numbers are approximately how many bytes are hashed.
- name speed vs_mimic
+ name speed vs_mimic
- wuffs_adler32_10k/clang8 2.41GB/s 0.84x
- wuffs_adler32_100k/clang8 2.42GB/s 0.84x
+ wuffs_adler32_10k/clang11 22.3 GB/s 6.4x
+ wuffs_adler32_100k/clang11 26.4 GB/s 7.5x
- wuffs_adler32_10k/gcc9 3.24GB/s 1.13x
- wuffs_adler32_100k/gcc9 3.24GB/s 1.12x
+ wuffs_adler32_10k/gcc10 21.9 GB/s 6.3x
+ wuffs_adler32_100k/gcc10 22.4 GB/s 6.4x
- mimic_adler32_10k 2.87GB/s 1.00x
- mimic_adler32_100k 2.90GB/s 1.00x
+ mimicztl_adler32_10k 3.50 GB/s 1.0x
+ mimicztl_adler32_100k 3.52 GB/s 1.0x
+
+ mimiclibdeflate_adler32_10k 50.4 GB/s 14.4x
+ mimiclibdeflate_adler32_100k 49.4 GB/s 14.0x
+
+
+# Bzip2
+
+The `1k`, `10k`, etc. numbers are approximately how many bytes there are in the
+decoded output.
+
+ name speed vs_mimic
+
+ wuffs_bzip2_decode_10k/clang11 63.0 MB/s 1.86x
+ wuffs_bzip2_decode_100k/clang11 48.9 MB/s 1.62x
+
+ wuffs_bzip2_decode_10k/gcc10 61.1 MB/s 1.81x
+ wuffs_bzip2_decode_100k/gcc10 49.1 MB/s 1.62x
+
+ mimic_bzip2_decode_10k 33.8 MB/s 1.00x
+ mimic_bzip2_decode_100k 30.2 MB/s 1.00x
# CRC-32
The `1k`, `10k`, etc. numbers are approximately how many bytes are hashed.
- name speed vs_mimic
+ name speed vs_mimic
- wuffs_crc32_ieee_10k/clang8 2.85GB/s 2.11x
- wuffs_crc32_ieee_100k/clang8 2.87GB/s 2.13x
+ wuffs_crc32_ieee_10k/clang11 14.7 GB/s 9.1x
+ wuffs_crc32_ieee_100k/clang11 21.6 GB/s 13.3x
- wuffs_crc32_ieee_10k/gcc9 3.38GB/s 2.50x
- wuffs_crc32_ieee_100k/gcc9 3.40GB/s 2.52x
+ wuffs_crc32_ieee_10k/gcc10 14.9 GB/s 9.2x
+ wuffs_crc32_ieee_100k/gcc10 23.8 GB/s 14.7x
- mimic_crc32_ieee_10k 1.35GB/s 1.00x
- mimic_crc32_ieee_100k 1.35GB/s 1.00x
+ mimicztl_crc32_ieee_10k 1.62 GB/s 1.0x
+ mimicztl_crc32_ieee_100k 1.62 GB/s 1.0x
+
+ mimiclibdeflate_crc32_ieee_10k 24.6 GB/s 15.2x
+ mimiclibdeflate_crc32_ieee_100k 25.4 GB/s 15.7x
# Deflate
-The `1k`, `10k`, etc. numbers are approximately how many bytes there in the
+The `1k`, `10k`, etc. numbers are approximately how many bytes there are in the
decoded output.
The `full_init` vs `part_init` suffixes are whether
[`WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED`](/doc/note/initialization.md#partial-zero-initialization)
is unset or set.
- name speed vs_mimic
+ name speed vs_mimic
- wuffs_deflate_decode_1k_full_init/clang8 160MB/s 0.74x
- wuffs_deflate_decode_1k_part_init/clang8 199MB/s 0.92x
- wuffs_deflate_decode_10k_full_init/clang8 255MB/s 0.94x
- wuffs_deflate_decode_10k_part_init/clang8 263MB/s 0.97x
- wuffs_deflate_decode_100k_just_one_read/clang8 306MB/s 0.93x
- wuffs_deflate_decode_100k_many_big_reads/clang8 250MB/s 0.98x
+ wuffs_deflate_decode_1k_full_init/clang11 195 MB/s 0.81x
+ wuffs_deflate_decode_1k_part_init/clang11 226 MB/s 0.93x
+ wuffs_deflate_decode_10k_full_init/clang11 409 MB/s 1.41x
+ wuffs_deflate_decode_10k_part_init/clang11 418 MB/s 1.47x
+ wuffs_deflate_decode_100k_just_one_read/clang11 521 MB/s 1.48x
+ wuffs_deflate_decode_100k_many_big_reads/clang11 330 MB/s 1.19x
- wuffs_deflate_decode_1k_full_init/gcc9 164MB/s 0.76x
- wuffs_deflate_decode_1k_part_init/gcc9 207MB/s 0.95x
- wuffs_deflate_decode_10k_full_init/gcc9 247MB/s 0.91x
- wuffs_deflate_decode_10k_part_init/gcc9 254MB/s 0.94x
- wuffs_deflate_decode_100k_just_one_read/gcc9 333MB/s 1.01x
- wuffs_deflate_decode_100k_many_big_reads/gcc9 261MB/s 1.02x
+ wuffs_deflate_decode_1k_full_init/gcc10 183 MB/s 0.76x
+ wuffs_deflate_decode_1k_part_init/gcc10 217 MB/s 0.90x
+ wuffs_deflate_decode_10k_full_init/gcc10 402 MB/s 1.39x
+ wuffs_deflate_decode_10k_part_init/gcc10 414 MB/s 1.43x
+ wuffs_deflate_decode_100k_just_one_read/gcc10 522 MB/s 1.48x
+ wuffs_deflate_decode_100k_many_big_reads/gcc10 330 MB/s 1.19x
- mimic_deflate_decode_1k 217MB/s 1.00x
- mimic_deflate_decode_10k 270MB/s 1.00x
- mimic_deflate_decode_100k_just_one_read 329MB/s 1.00x
- mimic_deflate_decode_100k_many_big_reads 256MB/s 1.00x
+ mimicztl_deflate_decode_1k_full_init 241 MB/s 1.00x
+ mimicztl_deflate_decode_10k_full_init 289 MB/s 1.00x
+ mimicztl_deflate_decode_100k_just_one_read 352 MB/s 1.00x
+ mimicztl_deflate_decode_100k_many_big_reads 277 MB/s 1.00x
-32-bit ARMv7 (2012 era Samsung Exynos 5 Chromebook), Debian Stretch (2017):
+ mimiclibdeflate_deflate_decode_1k_full_init 326 MB/s 1.35x
+ mimiclibdeflate_deflate_decode_10k_full_init 503 MB/s 1.74x
+ mimiclibdeflate_deflate_decode_100k_just_one_read 507 MB/s 1.44x
+
+ mimicminiz_deflate_decode_1k_full_init 204 MB/s 0.85x
+ mimicminiz_deflate_decode_10k_full_init 252 MB/s 0.87x
+ mimicminiz_deflate_decode_100k_just_one_read 287 MB/s 0.82x
+
+ go_deflate_decode_1k_full_init 71 MB/s 0.29x
+ go_deflate_decode_10k_full_init 120 MB/s 0.42x
+ go_deflate_decode_100k_just_one_read 135 MB/s 0.38x
+
+ rust_deflate_decode_1k_full_init 165 MB/s 0.68x
+ rust_deflate_decode_10k_full_init 259 MB/s 0.90x
+ rust_deflate_decode_100k_just_one_read 272 MB/s 0.77x
+
+To reproduce the libdeflate or miniz numbers, look in
+`test/c/mimiclib/deflate-gzip-zlib.c`. For Go 1.19, run `go run main.go` in
+`script/bench-go-deflate`. For Rust 1.48 / flate2 1.0.24 / miniz\_oxide 0.5.3,
+run `cargo run --release` in `script/bench-rust-deflate`.
+
+Historical (Wuffs v0.2; 2019) numbers for 32-bit ARMv7 (2012 era Samsung Exynos
+5 Chromebook), Debian Stretch (2017):
name speed vs_mimic
@@ -171,63 +230,6 @@
mimic_deflate_decode_100k_many_big_reads 90.0MB/s 1.00x
-## Deflate (C, miniz)
-
-For comparison, here are [miniz](https://github.com/richgel999/miniz) 2.1.0's
-numbers.
-
- name speed vs_mimic
-
- miniz_deflate_decode_1k/clang8 174MB/s 0.80x
- miniz_deflate_decode_10k/clang8 245MB/s 0.91x
- miniz_deflate_decode_100k_just_one_read/clang8 309MB/s 0.94x
-
- miniz_deflate_decode_1k/gcc9 158MB/s 0.73x
- miniz_deflate_decode_10k/gcc9 221MB/s 0.82x
- miniz_deflate_decode_100k_just_one_read/gcc9 250MB/s 0.76x
-
-To reproduce these numbers, look in `test/c/mimiclib/deflate-gzip-zlib.c`.
-
-
-## Deflate (Go)
-
-For comparison, here are Go 1.12.10's numbers, using Go's standard library's
-`compress/flate` package.
-
- name speed vs_mimic
-
- go_deflate_decode_1k 45.4MB/s 0.21x
- go_deflate_decode_10k 82.5MB/s 0.31x
- go_deflate_decode_100k 94.0MB/s 0.29x
-
-To reproduce these numbers:
-
- git clone https://github.com/google/wuffs.git
- cd wuffs/script/bench-go-deflate/
- go run main.go
-
-
-## Deflate (Rust)
-
-For comparison, here are Rust 1.37.0's numbers, using the
-[alexcrichton/flate2-rs](https://github.com/alexcrichton/flate2-rs) and
-[Frommi/miniz_oxide](https://github.com/Frommi/miniz_oxide) crates, which [this
-file](https://github.com/sile/libflate/blob/77a1004edf6518a0badab7ce8837bc5338ff9bc3/README.md#an-informal-benchmark)
-suggests is the fastest pure-Rust Deflate decoder.
-
- name speed vs_mimic
-
- rust_deflate_decode_1k 104MB/s 0.48x
- rust_deflate_decode_10k 202MB/s 0.75x
- rust_deflate_decode_100k 218MB/s 0.66x
-
-To reproduce these numbers:
-
- git clone https://github.com/google/wuffs.git
- cd wuffs/script/bench-rust-deflate/
- cargo run --release
-
-
# GIF
The `1k`, `10k`, etc. numbers are approximately how many pixels there are in
@@ -245,42 +247,67 @@
The libgif library doesn't export any API for decode-to-BGRA or decode-to-RGBA,
so there are no mimic numbers to compare to for the `bgra` suffix.
- name speed vs_mimic
+ name speed vs_mimic
- wuffs_gif_decode_1k_bw/clang8 461MB/s 3.18x
- wuffs_gif_decode_1k_color_full_init/clang8 141MB/s 1.85x
- wuffs_gif_decode_1k_color_part_init/clang8 189MB/s 2.48x
- wuffs_gif_decode_10k_bgra/clang8 743MB/s n/a
- wuffs_gif_decode_10k_indexed/clang8 200MB/s 2.11x
- wuffs_gif_decode_20k/clang8 245MB/s 2.50x
- wuffs_gif_decode_100k_artificial/clang8 531MB/s 3.43x
- wuffs_gif_decode_100k_realistic/clang8 218MB/s 2.27x
- wuffs_gif_decode_1000k_full_init/clang8 221MB/s 2.25x
- wuffs_gif_decode_1000k_part_init/clang8 221MB/s 2.25x
- wuffs_gif_decode_anim_screencap/clang8 1.07GB/s 6.01x
+ wuffs_gif_decode_1k_bw/clang11 758 MB/s 4.38x
+ wuffs_gif_decode_1k_color_full_init/clang11 176 MB/s 1.96x
+ wuffs_gif_decode_1k_color_part_init/clang11 213 MB/s 2.37x
+ wuffs_gif_decode_10k_bgra/clang11 786 MB/s n/a
+ wuffs_gif_decode_10k_indexed/clang11 208 MB/s 1.98x
+ wuffs_gif_decode_20k/clang11 262 MB/s 2.47x
+ wuffs_gif_decode_100k_artificial/clang11 580 MB/s 3.52x
+ wuffs_gif_decode_100k_realistic/clang11 225 MB/s 2.18x
+ wuffs_gif_decode_1000k_full_init/clang11 229 MB/s 2.16x
+ wuffs_gif_decode_1000k_part_init/clang11 229 MB/s 2.16x
+ wuffs_gif_decode_anim_screencap/clang11 1.31 GB/s 6.58x
- wuffs_gif_decode_1k_bw/gcc9 478MB/s 3.30x
- wuffs_gif_decode_1k_color_full_init/gcc9 148MB/s 1.94x
- wuffs_gif_decode_1k_color_part_init/gcc9 194MB/s 2.54x
- wuffs_gif_decode_10k_bgra/gcc9 645MB/s n/a
- wuffs_gif_decode_10k_indexed/gcc9 203MB/s 2.14x
- wuffs_gif_decode_20k/gcc9 244MB/s 2.49x
- wuffs_gif_decode_100k_artificial/gcc9 532MB/s 3.43x
- wuffs_gif_decode_100k_realistic/gcc9 214MB/s 2.23x
- wuffs_gif_decode_1000k_full_init/gcc9 217MB/s 2.21x
- wuffs_gif_decode_1000k_part_init/gcc9 218MB/s 2.22x
- wuffs_gif_decode_anim_screencap/gcc9 1.11GB/s 6.24x
+ wuffs_gif_decode_1k_bw/gcc10 659 MB/s 3.80x
+ wuffs_gif_decode_1k_color_full_init/gcc10 175 MB/s 1.94x
+ wuffs_gif_decode_1k_color_part_init/gcc10 202 MB/s 2.24x
+ wuffs_gif_decode_10k_bgra/gcc10 768 MB/s n/a
+ wuffs_gif_decode_10k_indexed/gcc10 202 MB/s 1.92x
+ wuffs_gif_decode_20k/gcc10 250 MB/s 2.36x
+ wuffs_gif_decode_100k_artificial/gcc10 564 MB/s 3.42x
+ wuffs_gif_decode_100k_realistic/gcc10 217 MB/s 2.11x
+ wuffs_gif_decode_1000k_full_init/gcc10 221 MB/s 2.08x
+ wuffs_gif_decode_1000k_part_init/gcc10 221 MB/s 2.08x
+ wuffs_gif_decode_anim_screencap/gcc10 1.31 GB/s 6.58x
- mimic_gif_decode_1k_bw 145MB/s 1.00x
- mimic_gif_decode_1k_color 76.3MB/s 1.00x
- mimic_gif_decode_10k_indexed 94.9MB/s 1.00x
- mimic_gif_decode_20k 98.1MB/s 1.00x
- mimic_gif_decode_100k_artificial 155MB/s 1.00x
- mimic_gif_decode_100k_realistic 96.1MB/s 1.00x
- mimic_gif_decode_1000k 98.4MB/s 1.00x
- mimic_gif_decode_anim_screencap 178MB/s 1.00x
+ mimic_gif_decode_1k_bw 173 MB/s 1.00x
+ mimic_gif_decode_1k_color_full_init 90 MB/s 1.00x
+ mimic_gif_decode_10k_indexed 105 MB/s 1.00x
+ mimic_gif_decode_20k 106 MB/s 1.00x
+ mimic_gif_decode_100k_artificial 165 MB/s 1.00x
+ mimic_gif_decode_100k_realistic 103 MB/s 1.00x
+ mimic_gif_decode_1000k_full_init 106 MB/s 1.00x
+ mimic_gif_decode_anim_screencap 199 MB/s 1.00x
-32-bit ARMv7 (2012 era Samsung Exynos 5 Chromebook), Debian Stretch (2017):
+ go_gif_decode_1k_bw 167 MB/s 0.97x
+ go_gif_decode_1k_color_full_init 63 MB/s 0.70x
+ go_gif_decode_10k_bgra 216 MB/s n/a
+ go_gif_decode_10k_indexed 92 MB/s 0.88x
+ go_gif_decode_20k 102 MB/s 0.96x
+ go_gif_decode_100k_artificial 202 MB/s 1.22x
+ go_gif_decode_100k_realistic 102 MB/s 0.99x
+ go_gif_decode_1000k_full_init 103 MB/s 0.97x
+ go_gif_decode_anim_screencap 237 MB/s 1.19x
+
+ rust_gif_decode_1k_bw 362 MB/s 2.09x
+ rust_gif_decode_1k_color_full_init 113 MB/s 1.26x
+ rust_gif_decode_10k_bgra 333 MB/s n/a
+ rust_gif_decode_10k_indexed 101 MB/s 0.96x
+ rust_gif_decode_20k 119 MB/s 1.12x
+ rust_gif_decode_100k_artificial 248 MB/s 1.50x
+ rust_gif_decode_100k_realistic 113 MB/s 1.10x
+ rust_gif_decode_1000k_full_init 115 MB/s 1.08x
+ rust_gif_decode_anim_screencap 513 MB/s 2.58x
+
+To reproduce the Go 1.19 numbers, run `go run main.go` in
+`script/bench-go-gif`. For Rust 1.48 / gif 0.11.4, run `cargo run --release` in
+`script/bench-rust-gif`.
+
+Historical (Wuffs v0.2; 2019) numbers for 32-bit ARMv7 (2012 era Samsung Exynos
+5 Chromebook), Debian Stretch (2017):
name speed vs_mimic
@@ -318,106 +345,137 @@
mimic_gif_decode_anim_screencap 60.3MB/s 1.00x
-## GIF (Go)
-
-For comparison, here are Go 1.12.10's numbers, using Go's standard library's
-`image/gif` package.
-
- name speed vs_mimic
-
- go_gif_decode_1k_bw 107MB/s 0.74x
- go_gif_decode_1k_color 39.2MB/s 0.51x
- go_gif_decode_10k_bgra 117MB/s n/a
- go_gif_decode_10k_indexed 57.8MB/s 0.61x
- go_gif_decode_20k 67.2MB/s 0.69x
- go_gif_decode_100k_artificial 151MB/s 0.97x
- go_gif_decode_100k_realistic 67.2MB/s 0.70x
- go_gif_decode_1000k 68.1MB/s 0.69x
- go_gif_decode_anim_screencap 206MB/s 1.16x
-
-To reproduce these numbers:
-
- git clone https://github.com/google/wuffs.git
- cd wuffs/script/bench-go-gif/
- go run main.go
-
-
-## GIF (Rust)
-
-For comparison, here are Rust 1.37.0's numbers, using the
-[image-rs/image-gif](https://github.com/image-rs/image-gif) crate, easily the
-top `crates.io` result for ["gif"](https://crates.io/search?q=gif).
-
- name speed vs_mimic
-
- rust_gif_decode_1k_bw 89.2MB/s 0.62x
- rust_gif_decode_1k_color 20.7MB/s 0.27x
- rust_gif_decode_10k_bgra 74.5MB/s n/a
- rust_gif_decode_10k_indexed 20.4MB/s 0.21x
- rust_gif_decode_20k 28.9MB/s 0.29x
- rust_gif_decode_100k_artificial 79.1MB/s 0.51x
- rust_gif_decode_100k_realistic 27.9MB/s 0.29x
- rust_gif_decode_1000k 27.9MB/s 0.28x
- rust_gif_decode_anim_screencap 144MB/s 0.81x
-
-To reproduce these numbers:
-
- git clone https://github.com/google/wuffs.git
- cd wuffs/script/bench-rust-gif/
- cargo run --release
-
-
# Gzip (Deflate + CRC-32)
-The `1k`, `10k`, etc. numbers are approximately how many bytes there in the
+The `1k`, `10k`, etc. numbers are approximately how many bytes there are in the
decoded output.
- name speed vs_mimic
+ name speed vs_mimic
- wuffs_gzip_decode_10k/clang8 238MB/s 1.05x
- wuffs_gzip_decode_100k/clang8 273MB/s 1.03x
+ wuffs_gzip_decode_10k/clang11 420 MB/s 1.71x
+ wuffs_gzip_decode_100k/clang11 527 MB/s 1.81x
- wuffs_gzip_decode_10k/gcc9 239MB/s 1.06x
- wuffs_gzip_decode_100k/gcc9 297MB/s 1.12x
+ wuffs_gzip_decode_10k/gcc10 427 MB/s 1.74x
+ wuffs_gzip_decode_100k/gcc10 550 MB/s 1.89x
- mimic_gzip_decode_10k 226MB/s 1.00x
- mimic_gzip_decode_100k 265MB/s 1.00x
+ mimicztl_gzip_decode_10k 246 MB/s 1.00x
+ mimicztl_gzip_decode_100k 291 MB/s 1.00x
+
+ mimiclibdeflate_gzip_decode_10k 494 MB/s 2.01x
+ mimiclibdeflate_gzip_decode_100k 496 MB/s 1.70x
# LZW
-The `1k`, `10k`, etc. numbers are approximately how many bytes there in the
+The `1k`, `10k`, etc. numbers are approximately how many bytes there are in the
decoded output.
The libgif library doesn't export its LZW decoder in its API, so there are no
mimic numbers to compare to.
- name speed vs_mimic
+ name speed vs_mimic
- wuffs_lzw_decode_20k/clang8 263MB/s n/a
- wuffs_lzw_decode_100k/clang8 438MB/s n/a
+ wuffs_lzw_decode_20k/clang11 293 MB/s n/a
+ wuffs_lzw_decode_100k/clang11 489 MB/s n/a
- wuffs_lzw_decode_20k/gcc9 266MB/s n/a
- wuffs_lzw_decode_100k/gcc9 450MB/s n/a
+ wuffs_lzw_decode_20k/gcc10 259 MB/s n/a
+ wuffs_lzw_decode_100k/gcc10 516 MB/s n/a
+
+
+# PNG
+
+The `1k`, `10k`, etc. numbers are approximately how many bytes there are in the
+decoded image. For example, the `test/data/harvesters.*` images are 1165 × 859,
+approximately 1000k pixels and hence 4000k bytes at 4 bytes per pixel.
+
+The `full_init` vs `part_init` suffixes are whether
+[`WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED`](/doc/note/initialization.md#partial-zero-initialization)
+is unset or set.
+
+libpng's "simplified API" doesn't provide a way to ignore the checksum. We copy
+the `verify_checksum` numbers for a 1.00x baseline.
+
+ name speed vs_mimic
+
+ wuffs_png_decode_image_19k_8bpp/clang11 279 MB/s 2.29x
+ wuffs_png_decode_image_40k_24bpp/clang11 323 MB/s 2.20x
+ wuffs_png_decode_image_77k_8bpp/clang11 984 MB/s 2.66x
+ wuffs_png_decode_image_552k_32bpp_ignore_checksum/clang11 871 MB/s 3.01x
+ wuffs_png_decode_image_552k_32bpp_verify_checksum/clang11 837 MB/s 2.90x
+ wuffs_png_decode_image_4002k_24bpp/clang11 331 MB/s 1.55x
+
+ wuffs_png_decode_image_19k_8bpp/gcc10 277 MB/s 2.27x
+ wuffs_png_decode_image_40k_24bpp/gcc10 343 MB/s 2.33x
+ wuffs_png_decode_image_77k_8bpp/gcc10 1.00 GB/s 2.70x
+ wuffs_png_decode_image_552k_32bpp_ignore_checksum/gcc10 914 MB/s 3.16x
+ wuffs_png_decode_image_552k_32bpp_verify_checksum/gcc10 870 MB/s 3.01x
+ wuffs_png_decode_image_4002k_24bpp/gcc10 353 MB/s 1.65x
+
+ mimiclibpng_png_decode_image_19k_8bpp 122 MB/s 1.00x
+ mimiclibpng_png_decode_image_40k_24bpp 147 MB/s 1.00x
+ mimiclibpng_png_decode_image_77k_8bpp 370 MB/s 1.00x
+ mimiclibpng_png_decode_image_552k_32bpp_verify_checksum 289 MB/s 1.00x
+ mimiclibpng_png_decode_image_4002k_24bpp 214 MB/s 1.00x
+
+ mimiclibspng_png_decode_image_19k_8bpp 125 MB/s 1.02x
+ mimiclibspng_png_decode_image_40k_24bpp 155 MB/s 1.05x
+ mimiclibspng_png_decode_image_77k_8bpp 384 MB/s 1.04x
+ mimiclibspng_png_decode_image_552k_32bpp_ignore_checksum 461 MB/s 1.60x
+ mimiclibspng_png_decode_image_552k_32bpp_verify_checksum 392 MB/s 1.36x
+ mimiclibspng_png_decode_image_4002k_24bpp 225 MB/s 1.05x
+
+ mimiclodepng_png_decode_image_19k_8bpp 138 MB/s 1.13x
+ mimiclodepng_png_decode_image_40k_24bpp 166 MB/s 1.13x
+ mimiclodepng_png_decode_image_77k_8bpp 404 MB/s 1.09x
+ mimiclodepng_png_decode_image_552k_32bpp_verify_checksum 258 MB/s 0.89x
+ mimiclodepng_png_decode_image_4002k_24bpp 165 MB/s 0.77x
+
+ mimicstb_png_decode_image_19k_8bpp 150 MB/s 1.23x
+ mimicstb_png_decode_image_40k_24bpp 166 MB/s 1.13x
+ mimicstb_png_decode_image_77k_8bpp 443 MB/s 1.20x
+ mimicstb_png_decode_image_552k_32bpp_ignore_checksum 288 MB/s 1.00x
+ mimicstb_png_decode_image_4002k_24bpp 163 MB/s 0.76x
+
+ go_png_decode_image_19k_8bpp 92 MB/s 0.75x
+ go_png_decode_image_40k_24bpp 107 MB/s 0.73x
+ go_png_decode_image_77k_8bpp 207 MB/s 0.56x
+ go_png_decode_image_552k_32bpp_verify_checksum 246 MB/s 0.85x
+ go_png_decode_image_4002k_24bpp 116 MB/s 0.54x
+
+ rust_png_decode_image_19k_8bpp 187 MB/s 1.53x
+ rust_png_decode_image_40k_24bpp 260 MB/s 1.77x
+ rust_png_decode_image_77k_8bpp 330 MB/s 0.89x
+ rust_png_decode_image_552k_32bpp_verify_checksum 299 MB/s 1.03x
+ rust_png_decode_image_4002k_24bpp 264 MB/s 1.23x
+
+To reproduce the Go 1.19 numbers, run `go run main.go` in
+`script/bench-go-png`. For Rust 1.48 / png 0.17.5 / deflate 1.0.0 /
+miniz\_oxide 0.5.3, run `cargo run --release` in `script/bench-rust-png`.
# Zlib (Deflate + Adler-32)
-The `1k`, `10k`, etc. numbers are approximately how many bytes there in the
+The `1k`, `10k`, etc. numbers are approximately how many bytes there are in the
decoded output.
- name speed vs_mimic
+ name speed vs_mimic
- wuffs_zlib_decode_10k/clang8 237MB/s 0.96x
- wuffs_zlib_decode_100k/clang8 272MB/s 0.92x
+ wuffs_zlib_decode_10k/clang11 410 MB/s 1.53x
+ wuffs_zlib_decode_100k/clang11 505 MB/s 1.56x
- wuffs_zlib_decode_10k/gcc9 242MB/s 0.98x
- wuffs_zlib_decode_100k/gcc9 294MB/s 0.99x
+ wuffs_zlib_decode_10k/gcc10 431 MB/s 1.61x
+ wuffs_zlib_decode_100k/gcc10 548 MB/s 1.70x
- mimic_zlib_decode_10k 247MB/s 1.00x
- mimic_zlib_decode_100k 296MB/s 1.00x
+ mimicztl_zlib_decode_10k 268 MB/s 1.00x
+ mimicztl_zlib_decode_100k 323 MB/s 1.00x
+
+ mimiclibdeflate_zlib_decode_10k 497 MB/s 1.85x
+ mimiclibdeflate_zlib_decode_100k 499 MB/s 1.54x
+
+ mimicminiz_zlib_decode_10k 237 MB/s 0.88x
+ mimicminiz_zlib_decode_100k 272 MB/s 0.84x
---
-Updated on December 2019.
+Updated on September 2022.
