3 ms·
Don't you incur the cross-CCD latency every time you hit the 3D L3 cache anyways? Still, that's good info., I must have missed that part where they are doing t
by bick_nyers 3y ago
Don't you incur the cross-CCD latency every time you hit the 3D L3 cache anyways?
Still, that's good info., I must have missed that part where they are doing their CCD layout like that.
- icegreentea2 3y agoI don't think you get a cross-CCD hit for 3D v-cache - rather the entire L3 cache for that chiplet is slightly slower (latency wise) - https://chipsandcheese.com/2022/01/21/deep-diving-zen-3-v-cache/ https://chipsandcheese.com/2022/01/21/deep-diving-zen-3-v-ca...
- wmf 3y agoThreadripper doesn't have V-cache though.
- hypercube33 3y agoimagine if it had a shared cache....
- wmf 3y agoA shared cache would be slower. Better for some apps, worse for others.