Details
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Improvement
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Status: Resolved
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Low
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Resolution: Fixed
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None
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None
Description
Attached patch multi threads the row cache population
my small tests show improvements atleast;
- 4 cores - 11G stress-generated data - page cache dropped between runs single platter spinning disk: single threaded: INFO 10:18:21,365 completed loading (245562 ms; 311381 keys) row cache for Keyspace1.Standard1 INFO 10:32:43,738 completed loading (255106 ms; 311381 keys) row cache for Keyspace1.Standard1 multi threaded: INFO 10:22:47,567 completed loading (213905 ms; 311381 keys) row cache for Keyspace1.Standard1 INFO 10:27:26,873 completed loading (214514 ms; 311381 keys) row cache for Keyspace1.Standard1 ssd; single threaded: INFO 10:40:49,079 completed loading (103883 ms; 311381 keys) row cache for Keyspace1.Standard1 INFO 10:43:45,799 completed loading (106913 ms; 311381 keys) row cache for Keyspace1.Standard1 multi threaded: INFO 10:38:20,798 completed loading (57617 ms; 311381 keys) row cache for Keyspace1.Standard1 INFO 10:47:20,339 completed loading (56682 ms; 311381 keys) row cache for Keyspace1.Standard1