[midPoint-git] [Evolveum/midpoint] ada053: Add basic task bucket performance test

[mederly]

  Branch: refs/heads/feature/faster-buckets
  Home:   https://github.com/Evolveum/midpoint
  Commit: ada05385dd0fda4cc66bef274ec4a3f36a41dde7
      https://github.com/Evolveum/midpoint/commit/ada05385dd0fda4cc66bef274ec4a3f36a41dde7
  Author: Pavol Mederly <mederly at evolveum.com>
  Date:   2021-04-09 (Fri, 09 Apr 2021)

  Changed paths:
    M infra/schema/src/main/java/com/evolveum/midpoint/schema/statistics/TaskWorkBucketManagementPerformanceInformationUtil.java
    M infra/schema/src/main/java/com/evolveum/midpoint/schema/util/task/TaskOperationStatsUtil.java
    A infra/schema/src/test/java/com/evolveum/midpoint/schema/misc/TestMeasuringSizes.java
    M repo/repo-test-util/src/main/resources/test-config.xml
    M repo/task-quartz-impl/src/main/java/com/evolveum/midpoint/task/quartzimpl/statistics/Statistics.java
    A testing/story/src/test/java/com/evolveum/midpoint/testing/story/buckets/TestBucketsPerformance.java
    A testing/story/src/test/resources/buckets/role-slow.xml
    A testing/story/src/test/resources/buckets/system-configuration.xml
    A testing/story/src/test/resources/buckets/task-recompute-16-04.xml
    A testing/story/src/test/resources/buckets/task-recompute-256-30.xml

  Log Message:
  -----------
  Add basic task bucket performance test

Also:
 - added summarization of bucket performance information through trees;
 - increased the number of task manager threads in tests to 50;
 - added simple code that measures objects parts sizes.