Aliaksandr Valialkin
d088923aef
Revert "lib/mergeset: remove a pool for inmemoryBlock structs"
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This reverts commit 793fe39921
2021-05-28 01:09:32 +03:00
Aliaksandr Valialkin
793fe39921
lib/mergeset: remove a pool for inmemoryBlock structs
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The pool for inmemoryBlock struct doesn't give any performance gains in production workloads,
while it may result in excess memory usage for inmemoryBlock structs inside the pool during
background merge of indexdb.
2021-05-27 21:57:33 +03:00
Aliaksandr Valialkin
636c55b526
lib/mergeset: reduce memory usage for inmemoryBlock by using more compact items representation
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This also should reduce CPU time spent by GC, since inmemoryBlock.items don't have pointers now,
so GC doesn't need visiting them.
2021-02-21 22:06:47 +02:00
Aliaksandr Valialkin
cb311bb156
lib/{mergeset,storage}: do not use pools for indexBlock and inmemoryBlock during their caching, since this results in higher memory usage in production without any performance gains
2021-02-21 21:18:59 +02:00
Aliaksandr Valialkin
7faa762021
lib/mergeset: remove unused code after a4140de9e6
2021-02-16 13:40:09 +02:00
Aliaksandr Valialkin
a4140de9e6
lib/mergeset: unconditionally cache indexdb blocks
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Production workloads show that indexdb blocks must be cached unconditionally for reducing CPU usage.
This shouldn't increase memory usage too much, since unused blocks are removed from the cache every two minutes.
2021-02-09 00:47:50 +02:00
faceair
b638c1eed5
lib/mergeset: add missing shouldCacheBlock ( #1019 )
2021-01-15 11:46:01 +02:00
Aliaksandr Valialkin
00b1659dde
lib: dump compressed block contents on error during decompression
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This should improve detecting root cause for https://github.com/facebook/zstd/issues/2222
2020-08-15 14:44:33 +03:00
Aliaksandr Valialkin
d5dddb0953
all: use %w instead of %s for wrapping errors in fmt.Errorf
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This will simplify examining the returned errors such as httpserver.ErrorWithStatusCode .
See https://blog.golang.org/go1.13-errors for details.
2020-06-30 23:05:11 +03:00
Aliaksandr Valialkin
606585f7be
lib/{storage,mergeset}: cleanup: remove unused partSearch.indexBlockReuse
2020-05-14 14:03:03 +03:00
Aliaksandr Valialkin
ad8af629bb
all: rename ReadAt* to MustReadAt* in order to dont clash with io.ReaderAt
2020-01-30 15:08:58 +02:00
Aliaksandr Valialkin
893b62c682
lib/{mergeset,storage}: fix uint64 counters alignment for 32-bit architectures (GOARCH=386, GOARCH=arm)
2020-01-14 22:47:04 +02:00
Aliaksandr Valialkin
3c076544bf
app/vmselect/promql: allow negative offsets
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Updates https://github.com/prometheus/prometheus/issues/6282
2019-12-11 01:00:23 +02:00
Aliaksandr Valialkin
aebc45ad26
lib/{mergeset,storage}: do not cache inverted index blocks containing tag->metricIDs items
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This should reduce the amounts of used RAM during queries with filters over big number of time series.
2019-09-25 14:02:15 +03:00
Aliaksandr Valialkin
b986516fbe
lib/storage: create and use lib/uint64set instead of map[uint64]struct{}
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This should improve inverted index search performance for filters matching big number of time series,
since `lib/uint64set.Set` is faster than `map[uint64]struct{}` for both `Add` and `Has` calls.
See the corresponding benchmarks in `lib/uint64set`.
2019-09-24 21:17:55 +03:00
Aliaksandr Valialkin
a41955863a
lib/mergeset: make fmt
2019-06-29 14:25:26 +03:00
Aliaksandr Valialkin
0c88afa386
lib/mergeset: speed up binarySearchKey by skipping the first item during binary search
2019-06-29 13:45:49 +03:00
Aliaksandr Valialkin
1836c415e6
all: open-sourcing single-node version
2019-05-23 00:18:06 +03:00
