Hello Tidy Bot, Alexey Serbin, Kudu Jenkins, I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/20607 to look at the new patch set (#8). Change subject: KUDU-613: Scan Resistant Caching ...................................................................... KUDU-613: Scan Resistant Caching This patch introduces the SLRU cache that has two internal segments, the probationary and protected, to protect the cache from long/random reads. The SLRU cache has a parameter named 'lookups_threshold_' that determines the minimum amount of times an entry can be accessed before it's upgraded to the protected segment. Any random scans would then only evict entries from the probationary segment. Both the protected and probationary segment have their own configurable capacities. When the protected segment is at capacity, any entries evicted will be added to the MRU end of the probationary segment. TODO: - Add performance tests - Use SLRU cache in BlockCache - Write a similar cache for NVM memory Change-Id: I45531534a2049dd38c002f4dc7982df9fd46e0bb --- M src/kudu/util/CMakeLists.txt M src/kudu/util/block_cache_metrics.cc M src/kudu/util/block_cache_metrics.h M src/kudu/util/cache.cc M src/kudu/util/cache.h M src/kudu/util/nvm_cache.cc M src/kudu/util/nvm_cache.h A src/kudu/util/slru_cache-test.cc A src/kudu/util/slru_cache.cc A src/kudu/util/slru_cache.h 10 files changed, 1,826 insertions(+), 228 deletions(-) git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/07/20607/8 -- To view, visit http://gerrit.cloudera.org:8080/20607 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: kudu Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: I45531534a2049dd38c002f4dc7982df9fd46e0bb Gerrit-Change-Number: 20607 Gerrit-PatchSet: 8 Gerrit-Owner: Mahesh Reddy <mre...@cloudera.com> Gerrit-Reviewer: Alexey Serbin <ale...@apache.org> Gerrit-Reviewer: Kudu Jenkins (120) Gerrit-Reviewer: Mahesh Reddy <mre...@cloudera.com> Gerrit-Reviewer: Tidy Bot (241)