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Stephen J Day 250e61e2a1 Prevent false sharing in signature fetch ... The original implementation wrote to different locations in a shared slice. While this is theoretically okay, we end up thrashing the cpu cache since multiple slice members may be on the same cache line. So, even though each thread has its own memory location, there may be contention over the cache line. This changes the code to aggregate to a slice in a single goroutine. In reality, this change likely won't have any performance impact. The theory proposed above hasn't really even been tested. Either way, we can consider it and possibly go forward. Signed-off-by: Stephen J Day <stephen.day@docker.com>		2015-04-09 14:35:10 -07:00
docs	Prevent false sharing in signature fetch	2015-04-09 14:35:10 -07:00