mirror of
https://github.com/featurebasedb/featurebase.git
synced 2026-09-09 14:41:02 +00:00
roaring: optimize splat
This commit is contained in:
Jaden Weiss
parent
cf24ee161f
commit
8fc7861148
2 changed files with 205 additions and 6 deletions
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@ -441,8 +441,9 @@ func (c *Container) AsBitmap(target []uint64) (out []uint64) {
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}
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if c.typeID == containerRun {
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runs := c.runs()
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b := (*[1024]uint64)(unsafe.Pointer(&out[0]))
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for _, r := range runs {
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splatRun(out, r)
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splatRun(b, r)
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}
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return out
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}
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@ -450,12 +451,165 @@ func (c *Container) AsBitmap(target []uint64) (out []uint64) {
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return out
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}
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func splatRun(into []uint64, from interval16) {
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// TODO this can be ~64x faster for long runs by setting maxBitmap instead of single bits
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//note v must be int or will overflow
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for v := int(from.start); v <= int(from.last); v++ {
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into[v/64] |= (uint64(1) << uint(v%64))
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// fillerBitmap is a bitmap full of filler.
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var fillerBitmap = [1024]uint64{
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0), ^uint64(0),
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}
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func splatRun(into *[1024]uint64, from interval16) {
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// Handle the case where the start and end fall within the same word.
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if from.start/64 == from.last/64 {
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highMask := ^uint64(0) >> (63 - (from.last % 64))
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lowMask := ^uint64(0) << (from.start % 64)
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into[from.start/64] |= highMask & lowMask
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return
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}
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// Calculate preliminary bulk fill bounds.
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fillStart, fillEnd := from.start/64, from.last/64
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// Handle run start.
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if from.start%64 != 0 {
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into[from.start/64] |= ^uint64(0) << (from.start % 64)
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fillStart++
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}
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// Handle run end.
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||||
if from.last%64 != 63 {
|
||||
into[from.last/64] |= ^uint64(0) >> (63 - (from.last % 64))
|
||||
fillEnd--
|
||||
}
|
||||
|
||||
// Bulk fill everything inbetween.
|
||||
// Sufficiently large runs will use AVX under the hood.
|
||||
copy(into[fillStart:fillEnd+1], fillerBitmap[:])
|
||||
}
|
||||
|
||||
// setBitmap stores a set of uint64s as data.
|
||||
|
|
|
|||
|
|
@ -15,6 +15,7 @@
|
|||
package roaring
|
||||
|
||||
import (
|
||||
"math/rand"
|
||||
"testing"
|
||||
)
|
||||
|
||||
|
|
@ -185,3 +186,47 @@ func TestSliceContainers(t *testing.T) {
|
|||
}
|
||||
})
|
||||
}
|
||||
|
||||
func genRun(r *rand.Rand) interval16 {
|
||||
gen:
|
||||
dat := r.Uint32()
|
||||
start, end := uint16(dat>>16), uint16(dat)
|
||||
if start > end {
|
||||
goto gen
|
||||
}
|
||||
return interval16{start, end}
|
||||
}
|
||||
|
||||
func splatRunNaive(into []uint64, from interval16) {
|
||||
for v := int(from.start); v <= int(from.last); v++ {
|
||||
into[v/64] |= (uint64(1) << uint(v%64))
|
||||
}
|
||||
}
|
||||
|
||||
func TestSplat(t *testing.T) {
|
||||
r := rand.New(rand.NewSource(42))
|
||||
for i := 0; i < 1024; i++ {
|
||||
run := genRun(r)
|
||||
|
||||
var a, b [1024]uint64
|
||||
splatRunNaive(a[:], run)
|
||||
splatRun(&b, run)
|
||||
if a != b {
|
||||
t.Errorf("incorrect splat of run [%d, %d]", run.start, run.last)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func benchSplat(b *testing.B, run interval16) {
|
||||
var buf [1024]uint64
|
||||
for i := 0; i < b.N; i++ {
|
||||
splatRun(&buf, run)
|
||||
}
|
||||
}
|
||||
|
||||
func BenchmarkSplatSingle(b *testing.B) { benchSplat(b, interval16{42, 42}) }
|
||||
func BenchmarkSplatPartword(b *testing.B) { benchSplat(b, interval16{16, 31}) }
|
||||
func BenchmarkSplatWord(b *testing.B) { benchSplat(b, interval16{16, 31}) }
|
||||
func BenchmarkSplatEdges(b *testing.B) { benchSplat(b, interval16{15, 16}) }
|
||||
func BenchmarkSplatMedium(b *testing.B) { benchSplat(b, interval16{13, 65}) }
|
||||
func BenchmarkSplatAll(b *testing.B) { benchSplat(b, interval16{0, ^uint16(0)}) }
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue