Viewing profile — Lectem

>You say this with zero data. Or so you assume > Spinning by pausing or doing anything else results in worse performance. We measured this countless times. And I've seen the issue …

I mean my "No it isn't, it has a fixed number of yields, which has a very different duration on various CPUs" can be verified directly by having a look at the table in my article s…

I suppose you need to be able to read data from the buffers to know what parts of the graph to cull? Is computing the graph really long or the graph needs update mid execution? If …

That's a spin loop ;)

That's how they are supposed to work indeed! But spin locks aren't the only spin loops you may find, and allocator for example do spin. And for example under an allocation heavy co…

The issue with that is that a load fence may be very detrimental to perf. It doesn't really matter if rdtsc executes out of order in this code anyway, and there is no need for sync…

I've heard of issues on Arm devices with properly isolated cores (only one thread allowed, interrupts disabled) because the would interact with other threads using such a spinlock,…

> which themselves do a short userspace spin-wait and then fall back to a kernel wait queue on contention. Yes, but sadly not all implementations... The point remains that you shou…

The author (me) actually read this long ago > - It as an optimal amount of spinning No it isn't, it has a fixed number of yields, which has a very different duration on various CPU…

Yeah... why share something that is 2 years old ?

Looks like ArtStation didn't bribe Google like the rest of the big apps like Instagram, Facebook, Twitter... I'm surprised people forget that Google now IS evil and corrupt, and ar…

I wouldnt trust google with anything anymore. Their customer support (entreprise or not) always sucked. They're always "right". You can only suffer the damage silently unless you'r…