3 Commits

Author	SHA1	Message	Date
Abhishek Kona	e1174306c5	[RocksDB] Simplify StopWatch implementation ... Summary: Make stop watch a simple implementation, instead of subclass of a virtual class Allocate stop watches off the stack instead of heap. Code is more terse now. Test Plan: make all check, db_bench with --statistics=1 Reviewers: haobo, dhruba Reviewed By: haobo CC: leveldb Differential Revision: https://reviews.facebook.net/D10809	2013-05-17 10:55:34 -07:00
Abhishek Kona	63f216ee0a	memory manage statistics ... Summary: Earlier Statistics object was a raw pointer. This meant the user had to clear up the Statistics object after creating the database. In most use cases the database is created in a function and the statistics pointer is out of scope. Hence the statistics object would never be deleted. Now Using a shared_ptr to manage this. Want this in before the next release. Test Plan: make all check. Reviewers: dhruba, emayanke Reviewed By: emayanke CC: leveldb Differential Revision: https://reviews.facebook.net/D9735	2013-03-27 11:27:39 -07:00
Abhishek Kona	fe10200ddc	Introduce histogram in statistics.h ... Summary: * Introduce is histogram in statistics.h * stop watch to measure time. * introduce two timers as a poc. Replaced NULL with nullptr to fight some lint errors Should be useful for google. Test Plan: ran db_bench and check stats. make all check Reviewers: dhruba, heyongqiang Reviewed By: dhruba CC: leveldb Differential Revision: https://reviews.facebook.net/D8637	2013-02-20 10:43:32 -08:00