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Author SHA1 Message Date
Bartlomiej Plotka 1f81b3e913
Added Transactional Gatherer allowed cached solutions (#989) 
* Added cached collector.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

update.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Attempt 2

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Added blocking registry, with raw collector and transactional handler.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Added fast path to normal (empty) registry to save 8 allocs and 3K5B per Gather.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Simplified API, added tests.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Fix.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Simplified implementation.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Added benchmark.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Optimized.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Optimization attempt.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Revert "Optimization attempt."

This reverts commit 2fcaf51be9.

Optimization was not worth it:

 benchstat v1.txt v2.txt
name                                                           old time/op    new time/op    delta
CachedTGatherer_Update/Update_of_one_element_without_reset-12    2.64µs ± 0%    4.05µs ± 0%   ~     (p=1.000 n=1+1)
CachedTGatherer_Update/Update_of_all_elements_with_reset-12       701ms ± 0%     358ms ± 0%   ~     (p=1.000 n=1+1)
CachedTGatherer_Update/Gather-12                                  535µs ± 0%  703934µs ± 0%   ~     (p=1.000 n=1+1)

name                                                           old alloc/op   new alloc/op   delta
CachedTGatherer_Update/Update_of_one_element_without_reset-12      208B ± 0%      208B ± 0%   ~     (all equal)
CachedTGatherer_Update/Update_of_all_elements_with_reset-12      40.2MB ± 0%    41.1MB ± 0%   ~     (p=1.000 n=1+1)
CachedTGatherer_Update/Gather-12                                 48.6kB ± 0%    84.3kB ± 0%   ~     (p=1.000 n=1+1)

name                                                           old allocs/op  new allocs/op  delta
CachedTGatherer_Update/Update_of_one_element_without_reset-12      3.00 ± 0%      3.00 ± 0%   ~     (all equal)
CachedTGatherer_Update/Update_of_all_elements_with_reset-12        6.00 ± 0%   4003.00 ± 0%   ~     (p=1.000 n=1+1)
CachedTGatherer_Update/Gather-12                                  1.00k ± 0%     2.01k ± 0%   ~     (p=1.000 n=1+1)

* nit.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Another optimization attempt.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* rename and further optimization.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Hopefully final optimization.

benchstat -delta-test=none v6.txt v9.txt
name                                                           old time/op    new time/op    delta
CachedTGatherer_Update/Update_of_one_element_without_reset-12    13.1ms ± 0%     0.0ms ± 0%  -99.81%
CachedTGatherer_Update/Update_of_all_elements_with_reset-12       309ms ± 0%     282ms ± 0%   -8.77%
CachedTGatherer_Update/Gather-12                                  422ms ± 0%       0ms ± 0%  -99.95%

name                                                           old alloc/op   new alloc/op   delta
CachedTGatherer_Update/Update_of_one_element_without_reset-12      208B ± 0%      208B ± 0%    0.00%
CachedTGatherer_Update/Update_of_all_elements_with_reset-12      2.47kB ± 0%    1.67kB ± 0%  -32.56%
CachedTGatherer_Update/Gather-12                                 52.8kB ± 0%    24.6kB ± 0%  -53.34%

name                                                           old allocs/op  new allocs/op  delta
CachedTGatherer_Update/Update_of_one_element_without_reset-12      3.00 ± 0%      3.00 ± 0%    0.00%
CachedTGatherer_Update/Update_of_all_elements_with_reset-12        0.00           0.00         0.00%
CachedTGatherer_Update/Gather-12                                  1.00k ± 0%     0.00k ± 0%  -99.60%

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Removed obsolete comment

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Fixed tests.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Removed cache.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Fixed tests.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Re-add cache.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Removed cache.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
 2022-02-23 11:22:52 +00:00
beorn7 7be86f93c1 Create an internal package 
This is for types we don't want to export but which are used in
different packages within client_golang.

Currently, that's only NormalizeMetricFamilies (used in the prometheus
package and in the testutil package). More to be added as needed.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-03 00:18:11 +02:00