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* cleanup prepare script
* native image options
* fix quardaric probing (no change to perf)
* mask to get the last chunk of the name
* extract hash functions
* tweak the probing loop (-100ms)
* fiddle with native image options
* Reorder conditions in hope it makes branch predictor happier
* extracted constant
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* Inline parsing name and station to avoid constantly updating the offset field (-100ms)
* Remove Worker class, inline the logic into lambda
* Accumulate results in an int matrix instead of using result row (-50ms)
* Use native image
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Prepare scripts that use `#!/bin/sh` and
`source "$HOME/.sdkman/bin/sdkman-init.sh"`
fail on systems where `sh` is not `bash`,
e.g. on Ubuntu it is `dash` which has not `source`.
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* initial commit
* - use loop
- use mutable object to store results
* get rid of regex
* Do not allocate measurement objects
* MMap + custom double parsing ~ 1:30 (down from ~ 2:05)
* HashMap for accumulation and only sort at the end - 1:05
* MMap the whole file
* Use graal
* no GC
* Store results in an array list to avoid double map lookup
* Adjust max buf size
* Manual parsing number to long
* Add --enable-preview
* remove buffer size check (has no effect on performance)
* fix min & max initialization
* do not check for \r
* Revert "do not check for \r"
This reverts commit 9da1f574bf6261ea49c353488d3b4673cad3ce6e.
* Optimise parsing. Now completes in 31 sec down from ~43
* trying to parse numbers faster
* use open address hash table instead of the standard HashMap
* formatting
* Rename the script to match github username (change underscores to slashes)
Enable transparent huge pages, seems to improve by ~2 sec
* Revert "formatting"
This reverts commit 4e90797d2a729ed7385c9000c85cc7e87d935f96.
* Revert "use open address hash table instead of the standard HashMap"
This reverts commit c784b55f61e48f548b2623e5c8958c9b283cae14.
* add prepare_roman-r-m.sh
* SWAR tricks to find semicolon (-2 seconds ro run time)
* remove time call
* fix test
* Parallel version (~6.5 seconds)
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