Commit Graph

22 Commits

Author SHA1 Message Date
Junegunn Choi
2fc7c18747
Revise ranking algorithm 2016-09-18 14:34:46 +09:00
Junegunn Choi
827a83efbc
Remove Offset slice from Result struct 2016-08-20 01:53:32 +09:00
Junegunn Choi
37dc273148
Micro-optimizations
- Make structs smaller
- Introduce Result struct and use it to represent matched items instead of
  reusing Item struct for that purpose
- Avoid unnecessary memory allocation
- Avoid growing slice from the initial capacity
- Code cleanup
2016-08-19 02:39:32 +09:00
Junegunn Choi
f7f01d109e
Set the upper limit of the number of search go routines 2016-08-19 01:55:38 +09:00
Junegunn Choi
babf877fd6
Increase the number of go routines for search
Sort performance increases as the size of each sublist decreases (n in
nlog(n) decreases). Merger is then responsible for merging the sorted
lists in order, and since in most cases we are only interesed in the
matches in the first page on the screen so the overhead in the process
is negligible.
2016-08-18 01:46:05 +09:00
Junegunn Choi
d4b6338102
Lint 2016-08-14 17:51:34 +09:00
Sergey Vlasov
e3401a0645 Go 1.3 compatibility 2016-02-16 11:28:40 +02:00
Junegunn Choi
634670e3ea Lint 2015-08-02 13:11:59 +09:00
Junegunn Choi
2fe1e28220 Improvements in performance and memory usage
I profiled fzf and it turned out that it was spending significant amount
of time repeatedly converting character arrays into Unicode codepoints.
This commit greatly improves search performance after the initial scan
by memoizing the converted results.

This commit also addresses the problem of unbounded memory usage of fzf.
fzf is a short-lived process that usually processes small input, so it
was implemented to cache the intermediate results very aggressively with
no notion of cache expiration/eviction. I still think a proper
implementation of caching scheme is definitely an overkill. Instead this
commit introduces limits to the maximum size (or minimum selectivity) of
the intermediate results that can be cached.
2015-04-17 22:23:52 +09:00
Junegunn Choi
50292adacb Implement --toggle-sort option (#173) 2015-03-31 22:05:16 +09:00
Junegunn Choi
b431e227da Code cleanup 2015-03-22 16:05:54 +09:00
Junegunn Choi
d94dfe0876 Fix #151 - reduce initial memory footprint 2015-03-19 19:59:38 +09:00
Junegunn Choi
c1aa5c5f33 Add --tac option and reverse display order of --no-sort
DISCLAIMER: This is a backward incompatible change
2015-02-26 01:42:15 +09:00
Junegunn Choi
f5b034095a Fix race condition in asynchronous -1 and -0 2015-02-18 00:51:44 +09:00
Junegunn Choi
e808151c28 Make --select-1 and --exit-0 asynchronous 2015-02-18 00:08:17 +09:00
Junegunn Choi
d760b790b3 Fix typo in code 2015-02-17 19:28:10 +09:00
Junegunn Choi
cd847affb7 Reorganize source code 2015-01-12 12:56:17 +09:00
Junegunn Choi
7a2bc2cada Lint 2015-01-12 03:18:40 +09:00
Junegunn Choi
9dbf6b02d2 Fix race conditions
- Wait for completions of goroutines when cancelling a search
- Remove shared access to rank field of Item
2015-01-11 23:49:12 +09:00
Junegunn Choi
b7bb100810 Improve response time by only looking at top-N items 2015-01-10 01:06:18 +09:00
Junegunn Choi
40d0a6347c Fix scan limit for --select-1 and --exit-0 options 2015-01-04 01:47:59 +09:00
Junegunn Choi
f3177305d5 Rewrite fzf in Go 2015-01-04 00:37:29 +09:00