li guang <lig.fnst@xxxxxxxxxxxxxx> writes: > 在 2012-10-24三的 02:43 -0700,tip-bot for Paul Turner写道: >> + do { >> + if (runnable) >> + sa->runnable_avg_sum += delta_w; >> + sa->runnable_avg_period += delta_w; >> + >> + /* >> + * Remainder of delta initiates a new period, roll over >> + * the previous. >> + */ >> + sa->runnable_avg_sum = >> + decay_load(sa->runnable_avg_sum, 1); > > Is this u0+u1*y+u2*y^2+u3*y^3 ..., > seems no, this is u0+u1*y+u2*y+u3*y+u4*y ... > It is cumulative, so it is u0+y*(u1+y*(u2+..., which is u0+u1*y+u2*y^2+... -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html