Aliaksandr Valialkin
590160ddbb
lib/slicesutil: add helper functions for setting slice length and extending its capacity
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The added helper functions - SetLength() and ExtendCapacity() - replace error-prone code with simple function calls.
2024-05-12 11:32:17 +02:00
Aliaksandr Valialkin
5c8eee26bf
all: make fmt via the upcoming Go1.19
2022-07-11 19:22:15 +03:00
Aliaksandr Valialkin
c14dafce43
lib/promscrape: an attempt to reduce memory usage when vmagent scrapes targets with varying number of metrics
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Do not cache too big byte buffers and too big writeRequestCtx objects,
since it is cheaper to re-create them instead of wasting RAM for their caching.
This reverts 7f6f350ee1
2021-03-15 11:45:39 +02:00
Aliaksandr Valialkin
acbcad1ece
lib/{promscrape,leveledbytebufferpool}: rename getPoolIdAndCapacity to getPoolIDAndCapacity in order to make golint happy
2020-08-28 09:49:32 +03:00
Aliaksandr Valialkin
efc730863b
lib/promscrape: reduce memory usage when scraping targets with big number of metrics alongside targets with small number of labels
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Previously targets with big number of metrics and/or labels could generated too big buffers,
which then could be re-used when scraping targets with small number of metrics.
This resulted in memory waste.
Now big buffers are used only for targets with big number of metrics / labels,
while small buffers are used for targets with small number of metrics / labels.
2020-08-16 22:29:51 +03:00
Aliaksandr Valialkin
d6967319b6
lib/leveledbytebufferpool: allocate byte buffers with capacity rounded to the upper boundary for the given bucket
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This should reduce the number of resizings for the returned byte buffers.
2020-08-16 22:13:30 +03:00
Aliaksandr Valialkin
b3849a90fd
lib/leveledbytebufferpool: pre-allocate byte slice with the given capacity if the pool is empty
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This should reduce memory allocations and copying when the byte slice is growing.
2020-08-15 01:40:54 +03:00
Aliaksandr Valialkin
4628deecd1
lib/promscrape: reduce memory usage when scraping big number of targets
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Thanks to @dxtrzhang for the original idea at https://github.com/VictoriaMetrics/VictoriaMetrics/pull/688
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/689
2020-08-14 01:04:53 +03:00
