https://community.intel.com/t5/Analyzers/tuning-ASM-code/m-p/824299#M2355 Yes, you can tune ASM code with Intel VTune Amplifier XE. On screenshot below you can see C++ and ASM source view.<BR /><BR /><IMG height="497" width="873" src="http://software.intel.com/file/43751" /> Sat, 12 May 2012 14:11:03 GMT Kirill_R_Intel 2012-05-12T14:11:03Z https://community.intel.com/t5/Analyzers/tuning-ASM-code/m-p/824298#M2354 Is tool good and usable for tuning ASM code? Sat, 12 May 2012 02:10:31 GMT https://community.intel.com/t5/Analyzers/tuning-ASM-code/m-p/824298#M2354 dfati 2012-05-12T02:10:31Z https://community.intel.com/t5/Analyzers/tuning-ASM-code/m-p/824299#M2355 Yes, you can tune ASM code with Intel VTune Amplifier XE. On screenshot below you can see C++ and ASM source view.<BR /><BR /><IMG height="497" width="873" src="http://software.intel.com/file/43751" /> Sat, 12 May 2012 14:11:03 GMT https://community.intel.com/t5/Analyzers/tuning-ASM-code/m-p/824299#M2355 Kirill_R_Intel 2012-05-12T14:11:03Z https://community.intel.com/t5/Analyzers/tuning-ASM-code/m-p/824300#M2356 Thanks. To clarify, if I only has .ASM source (no .C, .CPP, etc..) I could still open it up and see something simlar with each instruction timed? Sat, 19 May 2012 07:09:35 GMT https://community.intel.com/t5/Analyzers/tuning-ASM-code/m-p/824300#M2356 dfati 2012-05-19T07:09:35Z https://community.intel.com/t5/Analyzers/tuning-ASM-code/m-p/824301#M2357 Yes, you should be able to see ASM sources. Sat, 19 May 2012 12:12:28 GMT https://community.intel.com/t5/Analyzers/tuning-ASM-code/m-p/824301#M2357 Kirill_R_Intel 2012-05-19T12:12:28Z https://community.intel.com/t5/Analyzers/tuning-ASM-code/m-p/824302#M2358 Event counts will not necessarily be allocated to instructions as you might expect; they may be attributed to subsequent instructions which consume the result of the instruction of interest. Sat, 19 May 2012 14:59:35 GMT https://community.intel.com/t5/Analyzers/tuning-ASM-code/m-p/824302#M2358 TimP 2012-05-19T14:59:35Z