10 Mar
2015
10 Mar
'15
1:12 a.m.
2015-03-10 1:10 GMT+08:00 Bjorn Reese <breese@mail1.stofanet.dk>:
On 03/05/2015 04:32 PM, TONGARI J wrote:
You can find a more detailed description on the github page, if you want
to know some number about performance, from a rough test borrowed from Boost.Coroutine (symmetric/performance_switch.cpp), the avg cpu cycles for context-switch are:
Boost.Coroutine: 40 cycles CO2: 16 cycles built-in await: 9 cycles
I am curious about the performance difference. How much context does CO2 preserve during a context-switch?
Only one `unsigned` for jumping(switch). After some tuning, the context-switch is somehow faster than MSVC's __await. CO2: 7 cycles; __await: 11 cycles.