topic Intel hardware tss (context switch) in Software Tuning, Performance Optimization & Platform Monitoring https://community.intel.com/t5/Software-Tuning-Performance/Intel-hardware-tss-context-switch/m-p/1032943#M4316 Hello, I see the Linux kernel didn't go the hardware route for process switching in ring 0 (kernel). Could one gain a lot by using it ? It is said to be slower than software context switch. Seems strange to me. Any performance pointer ? Thanks Tue, 03 Mar 2015 20:58:35 GMT JLie 2015-03-03T20:58:35Z Intel hardware tss (context switch) https://community.intel.com/t5/Software-Tuning-Performance/Intel-hardware-tss-context-switch/m-p/1032943#M4316 Hello, I see the Linux kernel didn't go the hardware route for process switching in ring 0 (kernel). Could one gain a lot by using it ? It is said to be slower than software context switch. Seems strange to me. Any performance pointer ? Thanks Tue, 03 Mar 2015 20:58:35 GMT https://community.intel.com/t5/Software-Tuning-Performance/Intel-hardware-tss-context-switch/m-p/1032943#M4316 JLie 2015-03-03T20:58:35Z To answer my own question, it https://community.intel.com/t5/Software-Tuning-Performance/Intel-hardware-tss-context-switch/m-p/1032944#M4317 To answer my own question, it not even possible in 64 bit mode. Bye Wed, 04 Mar 2015 08:46:49 GMT https://community.intel.com/t5/Software-Tuning-Performance/Intel-hardware-tss-context-switch/m-p/1032944#M4317 JLie 2015-03-04T08:46:49Z