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Add distribution metrics#39

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bkjg wants to merge 91 commits intoocto:project-bkjgocto/collectd:project-bkjgfrom bkjg:distribution-metricsbkjg/collectd:distribution-metricsCopy head branch name to clipboard

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Commits on Jul 27, 2020

• Add distribution header file

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• Add draft of distribution functions

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• Add implementation of distribution_new_linear function

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• Add implementation of bucket_new_linear function

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• Remove one argument from distribution_new_exponential function

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• Add implementation of distribution_new_exponential function

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• Add implementation of bucket_new_exponential function

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• Add implementation of distribution_new_custom function

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• Add implementation of distribution_destroy function

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• Add implementation of bucket_new_custom function

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• Fix bugs

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• Add implementation of distribution_update function

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• Add implementation of distribution_percentile function

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• Add implementation of distribution_average function

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• Add mutex to distribution_update function

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• Add implementation of distribution_clone function

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• Change the type returned by distribution_clone function

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• Add cheking null pointeres

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• Make the code thread safe

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• Little pointers fixes

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• Add initial_size to distribution_h structure

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• Clang format

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• Add initialization and destruction of mutex

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• Fix potential attempt to read a null pointer

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Commits on Jul 28, 2020

• Add distribution metrics to the build system

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• Replace copying distribution metrics by mutex

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• Changed custom_bucket_sizes to custom_bucket_boundaries

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• Extend the comments in distribution.h file

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• Change the values returned from percentile and average functions

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• Add license

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• Fix email in the license

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• Add checking the correctness of the boundaries

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• Rename num_buckets to num_boundaries for custom boundaries

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Commits on Jul 29, 2020

• Fix seg fault in distribution initializating functions

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• Fix the seg fault in distribution_new_custom function

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Commits on Jul 30, 2020

• Add function for comparision of distributions

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• Remove casting pointers after calloc

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• Add casting to uint64_t in distribution_percentile function

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• Rename ptr to idx in bucket_update function

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• Add comment in distribution.h file

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• Add condition to distribution_percentile function

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• Fix binary search algorithm

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• Add distribution tests to the build system

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• Add first distribution test - testing distribution_new_linear

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• Add unit tests for distribution_new_linear function

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• Add unit tests for the distribution_new_exponential function

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• Start implementing tests form distribution_new_custom function

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• Add unit tests for the distribution_new_custom function

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• Add checking for not null in tests

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• Delete invalid tests

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• Start implementing tests for distribution_clone function

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• Add unit tests for the distribution_clone function

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• Add unit tests for the distribution_average function

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• Add draft of unit tests for distribution_percentile function

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• Add another unit tests for distribution_percentile function

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• Add TODO

  

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Commits on Jul 31, 2020

• Implement getters functions

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• Move implementation of distribution_new_linear test to use getters

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• Move implementation of distribution_new_exponential and distribution_new_custom tests to use getters

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• Change signature of distribution_update function to int

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Commits on Aug 3, 2020

• Fix heap buffer overflow error in bucket_update function

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Commits on Aug 4, 2020

• Fix problems with getters and rename initial_size to base

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• Implement tests for distribution_update and distribution_get_num_buckets

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• Merge remote-tracking branch 'origin/distribution-metrics' into distribution-metrics

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• Implement tests for distribution_get_buckets_boundaries

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• Fix bugs in distribution_get_buckets_boundaries function

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• Implement tests for distribution_get_buckets_counters function

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• Implement tests for distribution_get_sum_gauges and distribution_check_equal functions

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• Add checking errno inside unit tests

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• Add condition to distribution_new_custom function

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• Clang format

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• Replace constant number with static const variable

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• Remove distribution.c include in distribution_test.c file

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• Add getters to the distribution header file

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Commits on Aug 5, 2020

• Remove creating libdistribution.la from Makefile.am

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Commits on Aug 10, 2020

• Add distribution_benchmark to Makefile.am

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• Add benchmark

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• Add bash script for running distribution_benchmark

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• Clang format

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Commits on Aug 12, 2020

• Little fixes in benchmark and in functions for the distribution_t structure

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• Add distribution_benchmark for the different types of distribution

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• Change number of iterations in the benchmark

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Commits on Aug 13, 2020

• Change steps in script for running benchmark

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• Started introducing checking nulls in tests

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• Move checking the custom buckets boundaries before allocating buckets

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• Add comments about buckets' boundaries

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• Add comments to the header file

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• Fix returning NAN in distribution_average if there was no updates

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• Add checking nulls to the distribution_test

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• Add two corner cases to tests for distribution_new_exponential function

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Commits on Aug 14, 2020

• Add unlocking mutexes in case on failure in distribution_check_equal function

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