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That thing is intel-only, or at least Linux kernel thinks so: https://github.com/torvalds/linux/blob/master/arch/x86/kernel/tsc.c https://github.com/torvalds/li
by Const-me 9y ago
That thing is intel-only, or at least Linux kernel thinks so: https://github.com/torvalds/linux/blob/master/arch/x86/kernel/tsc.c https://github.com/torvalds/linux/blob/master/arch/x86/kerne...
And even on Intel, TSC is not reliable: https://lwn.net/Articles/388286/ https://lwn.net/Articles/388286/
- makomk 9y agoAMD CPUs have supported constant_tsc and nonstop_tsc since the Phenom era too.
- duskwuff 9y agoThere have also been some multi-socket configurations where TSC will gradually become desynchronized across sockets.
- yjftsjthsd-h 9y ago> intel-only So... >99% of servers and the vast majority of desktops?
- otterley 9y agoThat lkml thread was back in 2010, before invariant TSC was a thing.