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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/zstd/contrib/largeNbDicts/README.md | |
parent | Initial commit. (diff) | |
download | ceph-6d07fdb6bb33b1af39833b850bb6cf8af79fe293.tar.xz ceph-6d07fdb6bb33b1af39833b850bb6cf8af79fe293.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/zstd/contrib/largeNbDicts/README.md | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/zstd/contrib/largeNbDicts/README.md b/src/zstd/contrib/largeNbDicts/README.md new file mode 100644 index 000000000..f29bcdfe8 --- /dev/null +++ b/src/zstd/contrib/largeNbDicts/README.md @@ -0,0 +1,25 @@ +largeNbDicts +===================== + +`largeNbDicts` is a benchmark test tool +dedicated to the specific scenario of +dictionary decompression using a very large number of dictionaries. +When dictionaries are constantly changing, they are always "cold", +suffering from increased latency due to cache misses. + +The tool is created in a bid to investigate performance for this scenario, +and experiment mitigation techniques. + +Command line : +``` +largeNbDicts [Options] filename(s) + +Options : +-r : recursively load all files in subdirectories (default: off) +-B# : split input into blocks of size # (default: no split) +-# : use compression level # (default: 3) +-D # : use # as a dictionary (default: create one) +-i# : nb benchmark rounds (default: 6) +--nbDicts=# : set nb of dictionaries to # (default: one per block) +-h : help (this text) +``` |