topic Intel(R) Xeon(R) CPU X5670 @2.93GHz M/C Context Switching Range ..?? in Software Archive https://community.intel.com/t5/Software-Archive/Intel-R-Xeon-R-CPU-X5670-2-93GHz-M-C-Context-Switching-Range/m-p/933330#M15324 <P>All,</P> <P>What could be the optimal CONTEXT SWITCHING (CS) range for "Intel(R) Xeon(R) CPU X5670 @2.93GHz" processor? <BR /><BR />BTW, during normal data usages, the CS obtained were -</P> <P></P> <P>-----</P> <P>Linux 2.6.18-164.el5&nbsp;&nbsp; 09/19/2013&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; _x86_64_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (24 CPU)</P> <P></P> <P>02:10:01 PM&nbsp;&nbsp;&nbsp; proc/s&nbsp;&nbsp; cswch/s</P> <P>02:15:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.15&nbsp; 16429.85</P> <P>02:20:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.06&nbsp; 17294.97</P> <P>02:25:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.06&nbsp; 16409.18</P> <P>02:30:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.11&nbsp; 17302.70</P> <P>02:35:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.10 &nbsp;15900.32</P> <P>02:40:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.41&nbsp; 14600.11</P> <P>02:45:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.04&nbsp; 16768.76</P> <P>02:50:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.05&nbsp; 16378.32</P> <P>02:55:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.05&nbsp; 16950.46</P> <P>03:00:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.05&nbsp; 15758.15</P> <P>03:05:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.07&nbsp; 16070.32</P> <P>03:10:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.05&nbsp; 17812.22</P> <P>03:15:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.05&nbsp; 16582.59</P> <P>03:20:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.04&nbsp; 17736.24</P> <P>03:25:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.04&nbsp; 17165.20</P> <P>03:30:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.05&nbsp; 13103.27</P> <P>03:35:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.17&nbsp;&nbsp; 1078.21</P> <P>Average:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.09&nbsp; 15492.70</P> <P>------</P> <P>Thanks!!</P> Thu, 19 Sep 2013 11:23:24 GMT srimks 2013-09-19T11:23:24Z Intel(R) Xeon(R) CPU X5670 @2.93GHz M/C Context Switching Range ..?? https://community.intel.com/t5/Software-Archive/Intel-R-Xeon-R-CPU-X5670-2-93GHz-M-C-Context-Switching-Range/m-p/933330#M15324 <P>All,</P> <P>What could be the optimal CONTEXT SWITCHING (CS) range for "Intel(R) Xeon(R) CPU X5670 @2.93GHz" processor? <BR /><BR />BTW, during normal data usages, the CS obtained were -</P> <P></P> <P>-----</P> <P>Linux 2.6.18-164.el5&nbsp;&nbsp; 09/19/2013&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; _x86_64_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (24 CPU)</P> <P></P> <P>02:10:01 PM&nbsp;&nbsp;&nbsp; proc/s&nbsp;&nbsp; cswch/s</P> <P>02:15:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.15&nbsp; 16429.85</P> <P>02:20:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.06&nbsp; 17294.97</P> <P>02:25:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.06&nbsp; 16409.18</P> <P>02:30:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.11&nbsp; 17302.70</P> <P>02:35:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.10 &nbsp;15900.32</P> <P>02:40:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.41&nbsp; 14600.11</P> <P>02:45:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.04&nbsp; 16768.76</P> <P>02:50:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.05&nbsp; 16378.32</P> <P>02:55:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.05&nbsp; 16950.46</P> <P>03:00:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.05&nbsp; 15758.15</P> <P>03:05:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.07&nbsp; 16070.32</P> <P>03:10:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.05&nbsp; 17812.22</P> <P>03:15:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.05&nbsp; 16582.59</P> <P>03:20:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.04&nbsp; 17736.24</P> <P>03:25:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.04&nbsp; 17165.20</P> <P>03:30:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.05&nbsp; 13103.27</P> <P>03:35:01 PM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.17&nbsp;&nbsp; 1078.21</P> <P>Average:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.09&nbsp; 15492.70</P> <P>------</P> <P>Thanks!!</P> Thu, 19 Sep 2013 11:23:24 GMT https://community.intel.com/t5/Software-Archive/Intel-R-Xeon-R-CPU-X5670-2-93GHz-M-C-Context-Switching-Range/m-p/933330#M15324 srimks 2013-09-19T11:23:24Z I suppose that it will be https://community.intel.com/t5/Software-Archive/Intel-R-Xeon-R-CPU-X5670-2-93GHz-M-C-Context-Switching-Range/m-p/933331#M15325 <P>I suppose that it will be application dependent.For example multithreaded application will generally increase the amount of CS and also frequent transitions to kernel mode or syscalls in Linux could also increase the CS number.</P> Mon, 23 Sep 2013 14:14:08 GMT https://community.intel.com/t5/Software-Archive/Intel-R-Xeon-R-CPU-X5670-2-93GHz-M-C-Context-Switching-Range/m-p/933331#M15325 Bernard 2013-09-23T14:14:08Z