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Workaround for the high cpu usage issue in coroutines on linux (#5186)

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Fixes high cpu usage when all coroutines are asleep
This commit is contained in:
Dmitriy Fomichev 2017-01-11 13:01:03 +04:00 • committed by Andreas Rumpf
commit d356c37185
1 changed files with 3 additions and 3 deletions
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6
lib/pure/coro.nim
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@ -66,14 +66,14 @@ proc run*() =
## Starts main event loop which exits when all coroutines exit. Calling this proc
## starts execution of first coroutine.
var node = coroutines.head
var minDelay: float = 0
var minDelay: int = 0 # in milliseconds
var frame: PFrame
while node != nil:
var coro = node.value
current = coro
os.sleep(int(minDelay * 1000))
os.sleep(minDelay)
var remaining = coro.sleepTime - (epochTime() - coro.lastRun);
var remaining = int((coro.sleepTime - (epochTime() - coro.lastRun)) * 1000)
if remaining <= 0:
remaining = 0
let res = setjmp(mainCtx)