Compare to discohash #372

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opened 2020-05-25 14:37:01 -05:00 by make-github-pseudonymous-again · 3 comments

make-github-pseudonymous-again commented

2020-05-25 14:37:01 -05:00

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https://github.com/cris691/discohash

easyaspi314 commented

2020-05-25 17:13:30 -05:00

(Migrated from github.com)

Nothing to write home about on aarch64 for sure...

./xxhsum 0.7.4 by Yann Collet, compiled as 64-bit aarch64 + NEON little endian with Clang 9.0.1
Sample of 100 KB...
XXH32                         :     102400 ->    28157 it/s ( 2749.7 MB/s)
XXH32 unaligned               :     102400 ->    23081 it/s ( 2254.0 MB/s)
XXH64                         :     102400 ->    31571 it/s ( 3083.1 MB/s)
XXH64 unaligned               :     102400 ->    31668 it/s ( 3092.5 MB/s)
XXH3_64b                      :     102400 ->    61948 it/s ( 6049.7 MB/s)
XXH3_64b unaligned            :     102400 ->    57711 it/s ( 5635.8 MB/s)
XXH3_64b w/seed               :     102400 ->    61672 it/s ( 6022.7 MB/s)
XXH3_64b w/seed unaligned     :     102400 ->    56974 it/s ( 5563.9 MB/s)
XXH3_64b w/secret             :     102400 ->    58678 it/s ( 5730.3 MB/s)
XXH3_64b w/secret unaligned   :     102400 ->    54466 it/s ( 5318.9 MB/s)
XXH128                        :     102400 ->    51548 it/s ( 5033.9 MB/s)
XXH128 unaligned              :     102400 ->    48912 it/s ( 4776.6 MB/s)
XXH128 w/seed                 :     102400 ->    52415 it/s ( 5118.7 MB/s)
XXH128 w/seed unaligned       :     102400 ->    49660 it/s ( 4849.6 MB/s)
XXH128 w/secret               :     102400 ->    49943 it/s ( 4877.2 MB/s)
XXH128 w/secret unaligned     :     102400 ->    46412 it/s ( 4532.4 MB/s)
DiscoHash                     :     102400 ->    12382 it/s ( 1209.2 MB/s)
DiscoHash unaligned           :     102400 ->    11626 it/s ( 1135.3 MB/s)

Nothing to write home about on aarch64 for sure... ``` ./xxhsum 0.7.4 by Yann Collet, compiled as 64-bit aarch64 + NEON little endian with Clang 9.0.1 Sample of 100 KB... XXH32 : 102400 -> 28157 it/s ( 2749.7 MB/s) XXH32 unaligned : 102400 -> 23081 it/s ( 2254.0 MB/s) XXH64 : 102400 -> 31571 it/s ( 3083.1 MB/s) XXH64 unaligned : 102400 -> 31668 it/s ( 3092.5 MB/s) XXH3_64b : 102400 -> 61948 it/s ( 6049.7 MB/s) XXH3_64b unaligned : 102400 -> 57711 it/s ( 5635.8 MB/s) XXH3_64b w/seed : 102400 -> 61672 it/s ( 6022.7 MB/s) XXH3_64b w/seed unaligned : 102400 -> 56974 it/s ( 5563.9 MB/s) XXH3_64b w/secret : 102400 -> 58678 it/s ( 5730.3 MB/s) XXH3_64b w/secret unaligned : 102400 -> 54466 it/s ( 5318.9 MB/s) XXH128 : 102400 -> 51548 it/s ( 5033.9 MB/s) XXH128 unaligned : 102400 -> 48912 it/s ( 4776.6 MB/s) XXH128 w/seed : 102400 -> 52415 it/s ( 5118.7 MB/s) XXH128 w/seed unaligned : 102400 -> 49660 it/s ( 4849.6 MB/s) XXH128 w/secret : 102400 -> 49943 it/s ( 4877.2 MB/s) XXH128 w/secret unaligned : 102400 -> 46412 it/s ( 4532.4 MB/s) DiscoHash : 102400 -> 12382 it/s ( 1209.2 MB/s) DiscoHash unaligned : 102400 -> 11626 it/s ( 1135.3 MB/s) ```

👍 3

easyaspi314 commented

2020-05-25 17:24:45 -05:00

(Migrated from github.com)

Well it seems to be affected by clang bug 42874, but fixing that only gets to 1.3 GB/s.

GCC 9 gets 1.4 GB/s.

Well it seems to be affected by [clang bug 42874](https://bugs.llvm.org/show_bug.cgi?id=42874), but fixing that only gets to 1.3 GB/s. GCC 9 gets 1.4 GB/s.

make-github-pseudonymous-again commented

2020-05-29 04:36:04 -05:00

(Migrated from github.com)

Thanks for those comparisons!
Discohash does not appear yet on https://rurban.github.io/smhasher/doc/table.html ... Although the source is there https://github.com/rurban/smhasher/blob/master/discohash.cpp ...
Feel free to close the issue.

Thanks for those comparisons! Discohash does not appear yet on https://rurban.github.io/smhasher/doc/table.html ... Although the source is there https://github.com/rurban/smhasher/blob/master/discohash.cpp ... Feel free to close the issue.

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