2 Commits

Author	SHA1	Message	Date
Akanksha Mahajan	493f425e77	Add support to start and end IOTracing through DB APIs (#7203) ... Summary: 1. Add support to start io tracing through DB::StartIOTrace(Env*, const TraceOptions&, std::unique_ptr<TraceWriter>&&) and end tracing through DB::EndIOTrace(). This doesn't trace DB::Open. User side code: //Open DB DB::Open(options, dbname, &db); /* Start tracing */ db->StartIOTrace(env, trace_opt, std::move(trace_writer)); /* Perform Operations */ /*End tracing*/ db->EndIOTrace(); 2. Fix the build errors for Windows. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7203 Test Plan: make check -j64 Reviewed By: anand1976 Differential Revision: D22901947 Pulled By: akankshamahajan15 fbshipit-source-id: e59c0b785a802168e6f1aa028d99c224a35cb30c	2020-08-04 18:41:45 -07:00
Akanksha Mahajan	d93bd3ce25	Add FileSystem wrapper classes for IO tracing. (#7002) ... Summary: 1. Add the wrapper classes FileSystemTracingWrapper, FSSequentialFileTracingWrapper, FSRandomAccessFileTracingWrapper, FSWritableFileTracingWrapper, FSRandomRWFileTracingWrapper that forward the calls to underlying storage system and then pass the file operation information to IOTracer. IOTracer dumps the record in binary format for tracing. 2. Add the wrapper classes FileSystemPtr, FSSequentialFilePtr, FSRandomAccessFilePtr, FSWritableFilePtr and FSRandomRWFilePtr that overload operator-> and return ptr to underlying storage system or Tracing wrapper class based on enabling/disabling of IO tracing. These classes are added to bypass Tracing Wrapper classes when we disable tracing. 3. Add enums in trace.h that distinguish which options need to be added for different file operations(Read, close, write etc) as part of tracing record. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7002 Test Plan: make check -j64 Reviewed By: anand1976 Differential Revision: D22127897 Pulled By: akankshamahajan15 fbshipit-source-id: 74cff58ce5661c9a3832dfaa52483f3b2d8565e0	2020-07-13 16:36:55 -07:00