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Performance tuning - eager rune array conversion

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> wc -l /tmp/list2
     2594098 /tmp/list2

    > time cat /tmp/list2 | fzf-0.10.1-darwin_amd64 -fqwerty > /dev/null

    real    0m5.418s
    user    0m10.990s
    sys     0m1.302s

    > time cat /tmp/list2 | fzf-head -fqwerty > /dev/null

    real    0m4.862s
    user    0m6.619s
    sys     0m0.982s
This commit is contained in:
Junegunn Choi
2015-08-02 14:00:18 +09:00
parent 634670e3ea
commit 0ea66329b8
18 changed files with 163 additions and 154 deletions
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8
src/chunklist.go
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@@ -7,7 +7,7 @@ type Chunk []*Item // >>> []Item
// ItemBuilder is a closure type that builds Item object from a pointer to a
// string and an integer
type ItemBuilder func(*string, int) *Item
type ItemBuilder func([]rune, int) *Item
// ChunkList is a list of Chunks
type ChunkList struct {
@@ -26,7 +26,7 @@ func NewChunkList(trans ItemBuilder) *ChunkList {
trans: trans}
}
func (c *Chunk) push(trans ItemBuilder, data *string, index int) bool {
func (c *Chunk) push(trans ItemBuilder, data []rune, index int) bool {
item := trans(data, index)
if item != nil {
*c = append(*c, item)
@@ -53,7 +53,7 @@ func CountItems(cs []*Chunk) int {
}
// Push adds the item to the list
func (cl *ChunkList) Push(data string) bool {
func (cl *ChunkList) Push(data []rune) bool {
cl.mutex.Lock()
defer cl.mutex.Unlock()
@@ -62,7 +62,7 @@ func (cl *ChunkList) Push(data string) bool {
cl.chunks = append(cl.chunks, &newChunk)
}
if cl.lastChunk().push(cl.trans, &data, cl.count) {
if cl.lastChunk().push(cl.trans, data, cl.count) {
cl.count++
return true
}