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database: reduce idle memtable flush cpu shares to 1%

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Commit 1671d9c433 (not on any release branch)
accidentally bumped the idle memtable flush cpu shares to 100 (representing
10%), causing flushes to be too when they don't comsume too much cpu.

Fixes #3243.
Message-Id: <20180408104601.9607-1-avi@scylladb.com>
This commit is contained in:
Avi Kivity
2018-04-08 13:46:01 +03:00
committed by Duarte Nunes
parent 53d97b1da3
commit 80651e6dcc
1 changed files with 1 additions and 1 deletions
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2
backlog_controller.hh
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@@ -119,7 +119,7 @@ public:
flush_controller(seastar::scheduling_group sg, const ::io_priority_class& iop, float static_shares) : backlog_controller(sg, iop, static_shares) {}
flush_controller(seastar::scheduling_group sg, const ::io_priority_class& iop, std::chrono::milliseconds interval, float soft_limit, std::function<float()> current_dirty)
: backlog_controller(sg, iop, std::move(interval),
std::vector<backlog_controller::control_point>({{soft_limit, 100}, {soft_limit + (hard_dirty_limit - soft_limit) / 2, 200} , {hard_dirty_limit, 1000}}),
std::vector<backlog_controller::control_point>({{soft_limit, 10}, {soft_limit + (hard_dirty_limit - soft_limit) / 2, 200} , {hard_dirty_limit, 1000}}),
std::move(current_dirty)
)
{}