Summary:
Add unit support in options helper so we can specify, e.g., 10m for
10 megabytes.
Test Plan: Updated options_test
Reviewers: sdong, igor, ljin
Reviewed By: ljin
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D28977
Summary:
Fixed the following error in Mac:
./util/testharness.h:93:19: error: comparison of integers of different signs: 'const unsigned long' and 'const int' [-Werror,-Wsign-compare]
BINARY_OP(IsEq, ==)
~~~~~~~~~~~~~~~~^~~
./util/testharness.h:86:14: note: expanded from macro 'BINARY_OP'
if (! (x op y)) { \
^
util/options_test.cc:269:3: note: in instantiation of function template specialization 'rocksdb::test::Tester::IsEq<unsigned long, int>' requested here
ASSERT_EQ(new_cf_opt.write_buffer_size, 5);
^
Test Plan:
options_test
Summary: Allow accepting Options as a string of key/value pairs
Test Plan: unit test
Reviewers: yhchiang, sdong, igor
Reviewed By: igor
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D24597
Summary: as title
Test Plan: options_test
Reviewers: sdong, yhchiang, igor
Reviewed By: igor
Subscribers: leveldb
Differential Revision: https://reviews.facebook.net/D23283
Summary:
Add a function GetOptions(), where based on four parameters users give: read/write amplification threshold, memory budget for mem tables and target DB size, it picks up a compaction style and parameters for them. Background threads are not touched yet.
One limit of this algorithm: since compression rate and key/value size are hard to predict, it's hard to predict level 0 file size from write buffer size. Simply make 1:1 ratio here.
Sample results: https://reviews.facebook.net/P477
Test Plan: Will add some a unit test where some sample scenarios are given and see they pick the results that make sense
Reviewers: yhchiang, dhruba, haobo, igor, ljin
Reviewed By: ljin
Subscribers: leveldb
Differential Revision: https://reviews.facebook.net/D18741
