• Ben Gamari's avatar
    STM: Only wake up once · a23661d2
    Ben Gamari authored
    Previously, threads blocked on an STM retry would be sent a wakeup
    message each time an unpark was requested. This could result in the
    accumulation of a large number of wake-up messages, which would slow
    wake-up once the sleeping thread is finally scheduled.
    
    Here, we introduce a new closure type, STM_AWOKEN, which marks a TSO
    which has been sent a wake-up message, allowing us to send only one
    wakeup.
    a23661d2
Cmm.h 26.8 KB