Intel® Developer Zone:
Software Tuning, Performance Optimization & Platform Monitoring

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Discussion around topics such as monitoring and software tuning methodologies, Performance Monitoring Unit (PMU) of Intel microprocessors, software characterization, software optimization techniques for performance and power/energy, monitoring CPU core and graphics processors and other system coprocessors as well asimmerging runtime usages for software metering and quality of service.
Intel monitors this forum Monday – Friday, 09:00 – 17:00 Pacific Time (GMT –7:00). Depending on the amount of research we need to do to track down the answer, it may take a day or two for us to respond.
Topic / Topic starter Post date Replies Last Postsort ascending
Normal topic Contradiction in manual for PCIe read combining
by Anuj K.
Thu, 08/27/2015 - 04:35 3
by John McCalpin
Thu, 08/27/2015 - 19:41
Normal topic Account for run-to-run variation in bandwidth with vtunes
This topic has been moved to "Intel® VTune™ Amplifier XE" (View topic)
Normal topic Intel Hyper Threading
by Amit T.
Wed, 08/19/2015 - 20:49 1
by Tim P.
Wed, 08/19/2015 - 22:57
Normal topic R2PCIe Test
by GHui
Mon, 08/10/2015 - 19:43 3
by John McCalpin
Fri, 08/14/2015 - 13:24
Normal topic How to defeat H/W prefetcher in Intel Core i3/i7
by Bholanath R.
Mon, 08/10/2015 - 13:41 4
by John McCalpin
Fri, 08/14/2015 - 13:01
Normal topic stream take through R2PCIe
by GHui
Wed, 08/12/2015 - 07:56 1
by John McCalpin
Thu, 08/13/2015 - 09:22
Hot topic Get RING_THRU_DN_BYTES and RING_THRU_UP_BYTES
by GHui
Thu, 07/30/2015 - 02:43 19
by John McCalpin
Mon, 08/10/2015 - 11:38
Normal topic Question on PCM function getCyclesLostDueL3CacheMisses()
by Pradeep R.
Sun, 08/09/2015 - 22:36 3
by Roman Dementiev...
Mon, 08/10/2015 - 00:15
Normal topic uncore event counter reading
by yang s.
Thu, 03/19/2015 - 06:34 12
by John McCalpin
Thu, 08/06/2015 - 18:52
Hot topic Haswell L2 cache bandwidth to L1 (64 bytes/cycle)?
by Stephen
Fri, 10/03/2014 - 11:29 17
by John McCalpin
Thu, 08/06/2015 - 18:26
Normal topic Failed to access reg by pci address
by Zhu G.
Sun, 08/02/2015 - 21:09 7
by John McCalpin
Thu, 08/06/2015 - 17:20
Normal topic Preventing FP overcounts for AVX instructions on Sandy Bridge
by John McCalpin
Mon, 08/03/2015 - 15:09 3
by John McCalpin
Tue, 08/04/2015 - 12:02
Normal topic Caching H/W of Address Translation Structures on Intel64 Architectures
by drMikeT
Wed, 04/04/2012 - 12:06 8
by drMikeT
Tue, 08/04/2015 - 10:53
Normal topic Sudden change in Haswell power consumption
by futureishere
Tue, 08/04/2015 - 09:06 0
by futureishere
Tue, 08/04/2015 - 09:06
Normal topic What is UBox, Cbo, sbo, HA, iMC, IRP, PCU, QPI, R2PCIe, R3QPI and etc.
by GHui
Tue, 08/04/2015 - 02:34 1
by John McCalpin
Tue, 08/04/2015 - 08:48
Normal topic Xeon-D Uncore ECC Error Injection
by Ryan S.
Fri, 07/31/2015 - 10:11 0
by Ryan S.
Fri, 07/31/2015 - 10:11
Normal topic QPI Link Layer Packet Matching Reference "Gen By"
by Paul C.
Thu, 07/30/2015 - 09:07 2
by Paul C.
Fri, 07/31/2015 - 03:25
Normal topic Mistake in Intel Developer Manual Volume 3?
by T C
Mon, 07/27/2015 - 15:56 2
by T C
Wed, 07/29/2015 - 12:36
Normal topic How branches in loop body affect the performance when unrolling?
by Peng Z.
Sun, 07/26/2015 - 23:36 3
by Tim P.
Tue, 07/28/2015 - 05:04
Normal topic intel xeon hardware cache events not supported
by Jacob K.
Sat, 07/25/2015 - 03:55 1
by John McCalpin
Mon, 07/27/2015 - 13:41
Normal topic mmap doesn't return page size aligned address when mmap 1st param is zero
by Karen M.
Mon, 07/20/2015 - 11:18 2
by CyrIng
Sat, 07/25/2015 - 17:20
Normal topic DRAM Memory reads and writes
by Pramodkumar P.
Wed, 07/22/2015 - 00:28 1
by John McCalpin
Thu, 07/23/2015 - 10:43
Normal topic How to optimize "Matrix Transposition" in x64 or x86 platform
by Shaquille W.
Wed, 07/08/2015 - 23:51 3
by John McCalpin
Thu, 07/23/2015 - 10:37
Normal topic Uncore frequency on Haswell
by futureishere
Thu, 03/19/2015 - 12:24 8
by John McCalpin
Thu, 07/23/2015 - 08:47
Normal topic Measuring the fraction of time that memory has stalled the processor pipeline
by Zhu G.
Thu, 07/09/2015 - 05:50 1
by John McCalpin
Wed, 07/22/2015 - 14:07
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Hot topic with new posts
Hot topic without new posts
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For more complete information about compiler optimizations, see our Optimization Notice.