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user channel list 求余的问题 #56

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SongCF opened this issue Mar 13, 2017 · 1 comment
Open

user channel list 求余的问题 #56

SongCF opened this issue Mar 13, 2017 · 1 comment

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@SongCF
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SongCF commented Mar 13, 2017 

//func (l *ChannelList) Bucket(key string) *ChannelBucket 
idx := uint(h.Sum32()) & uint(Conf.ChannelBucket-1)  //其中 ChannelBucket = runtime.NumCPU()

只有当x=2^n(n为自然数)时，a % x = a & (x - 1 )才成立，
又服务器cpu至少我见过有10核12核的

那么这里就计算出的idx会有问题吧
@Terry-Mao
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我印象中，在配置文件里面有强制他2^n

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@Terry-Mao @SongCF