mirror of
https://github.com/featurebasedb/featurebase.git
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cf4297a771
This commit makes several changes to optimize the TopN() query: - Reduce highbits() back from 24-bits to 16-bits. - Reduce MaxArraySize back from 2^20 to 4096. - Optimize bitmap count invalidation. - Parallelize TopN() across nodes. - Parallelize TopN() across slices.
66 lines
1.1 KiB
Go
66 lines
1.1 KiB
Go
// +build amd64
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package roaring
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//go:noescape
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var useAsm = hasAsm()
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//go:noescape
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func popcntSliceAsm(s []uint64) uint64
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//go:noescape
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func popcntMaskSliceAsm(s, m []uint64) uint64
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//go:noescape
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func popcntAndSliceAsm(s, m []uint64) uint64
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//go:noescape
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func popcntOrSliceAsm(s, m []uint64) uint64
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//go:noescape
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func popcntXorSliceAsm(s, m []uint64) uint64
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//go:noescape
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func popcntAsm(x uint64) uint64
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func popcntSlice(s []uint64) uint64 {
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if useAsm {
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return popcntSliceAsm(s)
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}
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return popcntSliceGo(s)
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}
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func popcntMaskSlice(s, m []uint64) uint64 {
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if useAsm {
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return popcntMaskSliceAsm(s, m)
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}
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return popcntMaskSliceGo(s, m)
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}
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func popcntAndSlice(s, m []uint64) uint64 {
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if useAsm {
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return popcntAndSliceAsm(s, m)
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}
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return popcntAndSliceGo(s, m)
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}
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func popcntOrSlice(s, m []uint64) uint64 {
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if useAsm {
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return popcntOrSliceAsm(s, m)
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}
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return popcntOrSliceGo(s, m)
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}
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func popcntXorSlice(s, m []uint64) uint64 {
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if useAsm {
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return popcntXorSliceAsm(s, m)
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}
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return popcntXorSliceGo(s, m)
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}
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func popcnt(x uint64) uint64 {
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if useAsm {
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return popcntAsm(x)
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}
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return popcntGo(x)
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}
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