search for: processors

Displaying 20 results from an estimated 10113 matches for "processors".

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2016 Nov 16
2
[PATCH 1/1] sched: provide common cpu_relax_yield definition
No need to duplicate the same define everywhere. Since the only user is stop-machine and the only provider is s390, we can use a default implementation of cpu_relax_yield in sched.h. Suggested-by: Russell King <linux at armlinux.org.uk> Signed-off-by: Christian Borntraeger <borntraeger at de.ibm.com> --- arch/alpha/include/asm/processor.h | 1 - arch/arc/include/asm/processor.h
2016 Nov 16
2
[PATCH 1/1] sched: provide common cpu_relax_yield definition
No need to duplicate the same define everywhere. Since the only user is stop-machine and the only provider is s390, we can use a default implementation of cpu_relax_yield in sched.h. Suggested-by: Russell King <linux at armlinux.org.uk> Signed-off-by: Christian Borntraeger <borntraeger at de.ibm.com> --- arch/alpha/include/asm/processor.h | 1 - arch/arc/include/asm/processor.h
2016 Oct 25
0
[GIT PULL v2 5/5] processor.h: remove cpu_relax_lowlatency
As there are no users left, we can remove cpu_relax_lowlatency. Signed-off-by: Christian Borntraeger <borntraeger at de.ibm.com> --- arch/alpha/include/asm/processor.h | 1 - arch/arc/include/asm/processor.h | 2 -- arch/arm/include/asm/processor.h | 1 - arch/arm64/include/asm/processor.h | 1 - arch/avr32/include/asm/processor.h | 1 -
2016 Oct 25
0
[GIT PULL v2 1/5] processor.h: introduce cpu_relax_yield
For spinning loops people do often use barrier() or cpu_relax(). For most architectures cpu_relax and barrier are the same, but on some architectures cpu_relax can add some latency. For example on power,sparc64 and arc, cpu_relax can shift the CPU towards other hardware threads in an SMT environment. On s390 cpu_relax does even more, it uses an hypercall to the hypervisor to give up the timeslice.
2016 Oct 25
7
[GIT PULL v2 0/5] cpu_relax: drop lowlatency, introduce yield
Peter, here is v2 with some improved patch descriptions and some fixes. The previous version has survived one day of linux-next and I only changed small parts. So unless there is some other issue, feel free to pull (or to apply the patches) to tip/locking. The following changes since commit 07d9a380680d1c0eb51ef87ff2eab5c994949e69: Linux 4.9-rc2 (2016-10-23 17:10:14 -0700) are available in
2016 Oct 25
7
[GIT PULL v2 0/5] cpu_relax: drop lowlatency, introduce yield
Peter, here is v2 with some improved patch descriptions and some fixes. The previous version has survived one day of linux-next and I only changed small parts. So unless there is some other issue, feel free to pull (or to apply the patches) to tip/locking. The following changes since commit 07d9a380680d1c0eb51ef87ff2eab5c994949e69: Linux 4.9-rc2 (2016-10-23 17:10:14 -0700) are available in
2007 May 29
2
interrupt loading, intrd, and CMT
One of the things that I''ve been asked to look at lately is interrupt load spreading, and intrd, to improve the network performance of CMT systems. From my read of the code, it looks like intrd only knows about virtual processors. This has major breakage in that all the virtual processors on a single core in a Niagra system share the common interrupt logic. I.e. when the interrupt handler runs, it interrupts _everything_ on that core. What I''m thinking of is to teach intrd about cores, so that instead of con...
2012 Sep 19
1
[PATCH 1/1] lua: Cleaned up the dmi table structure in Lua.c32 and added all missing DMI subtables
From: Hung-chi Lihn <hlihn at google.com> In the current Lua.c32 DMI implementation, it is a flat table with dotted names in table entries. It also misses a number DMI sub-tables. This patch, cleans up the DMI table structure using Lua's nested table structure and adds all missing DMI sub-tables. If a DMI sub-table is not supported by the hardware (not filled), then the corresponding
2009 Nov 22
4
Xen 3.4.2 DomU Network Issues
I''ve got a new system with Dual Quad Core Intel E5520 processors and Intel 82576 NICs built on the motherboard (this is a Supermicro Nehalem based blade). I''m running Xen 3.4.2, but I''ve also tried 3.4.1 and had the same problem. Dom0''s network works flawlessly, but the DomU systems all have network issues. Whenever they transmit la...
2018 Aug 29
2
Get Logical processor count correctly whether NUMA is enabled or disabled
Dear Tomas, thank you very much. I installed r-devel r75201 and tested. The machine with 88 cores has NUMA disabled. It therefore has 2 processor groups with 64 and 24 processors each. require(parallel) detectCores() # [1] 88 This is great! Then I went on to test with a simple 'foreach()' loop. I started with 64 processors (max limit of 1 processor group). I ran with a simple function of 0.5s sleep. require(snow) require(doSNOW) require(foreach) cl <- makeCl...
2005 Nov 04
0
TSC and Power Management Events on AMD Processors
You might find this useful ... TSC and Power Management Events on AMD Processors - Nov 2, 2005 - Rich Brunner, AMD Fellow Current AMD Opteron(tm) and Athlon(tm)64 processors provide power management mechanisms that independently adjust the performance state ("P-state") and power state ("C-state") of the processor[1][2]; these state changes can a...
2018 Aug 21
2
Get Logical processor count correctly whether NUMA is enabled or disabled
Dear Tomas, thank you for looking into this. Here's the output: # number of logical processors - what detectCores() should return out <- system("wmic cpu get numberoflogicalprocessors", intern=TRUE) [1] "NumberOfLogicalProcessors \r" "22 \r" "22 \r" [4] "20 \r" &quot...
2018 Aug 17
2
Get Logical processor count correctly whether NUMA is enabled or disabled
Dear R-devel list, R's detectCores() function internally calls "ncpus" function to get the total number of logical processors. However, this doesnot seem to take NUMA into account on Windows machines. On a machine having 48 processors (24 cores) in total and windows server 2012 installed, if NUMA is enabled and has 2 nodes (node 0 and node 1 each having 24 CPUs), then R's detectCores() only detects 24 instead of the...
2010 Mar 16
0
[PATCH] Added the new Processors agent.
The Processors agent reports details regarding the processing power for the managed node. Defined the agent within schema.xml. Wrote the wrapper code to create and populate an instance of the agent. The properties for the Processors agent have also been trimmed back to what is readily available via HAL. Signed...
2009 Aug 25
4
Error when run MS Foxpro on wine
I install Wine on Ubuntu 9.04, i have errors when run MS foxpro : namhv at ubuntu:/media/disk/ktgd$ wine foxprox.exe fixme:gdi:get_default_fonts unhandled charset 0x000000a3 - use ANSI_CHARSET for default stock objects err:int:DOSVM_Int15Handler int15: unknown/not implemented parameters: int15: AX 2403, BX e6f5, CX 0c6c, DX 00fc, SI 0cfe, DI 571e, DS 199b, ES f000 err:int:DOSVM_Int2fHandler
2018 Sep 03
0
Get Logical processor count correctly whether NUMA is enabled or disabled
A summary for reference: the new detectCores() for Windows in R-devel seems to be working both for logical and physical cores on systems with >64 logical processors? (thanks to Arun for testing!). If the feature is important for anyone particularly using an older version of Windows and/or on a system with >64 logical processors, it would be nice if you could test and report any possible problem. As I mentioned earlier, in older versions of R one can as...
2010 Mar 22
1
Small change and resend...
This patch includes one small change: the Processors::get_load_average() method is now const since it does not change the object's state.
2010 Mar 22
1
Resend with loadavg as a statistic...
After some feedback from Slow, mainly about the load_average API being a method rather than an ongoing statistic. So I've converted the code over to instead update the load average statistic on a regular basis.
2008 Jul 31
1
Am I running NUMA?
...T on CPU#6 (XEN) AMD SVM: ASIDs enabled. (XEN) CPU6: AMD Quad-Core AMD Opteron(tm) Processor 8350 stepping 03 (XEN) Booting processor 7/7 eip 8c000 (XEN) masked ExtINT on CPU#7 (XEN) AMD SVM: ASIDs enabled. (XEN) CPU7: AMD Quad-Core AMD Opteron(tm) Processor 8350 stepping 03 (XEN) Total of 8 processors activated. (XEN) ENABLING IO-APIC IRQs (XEN) -> Using new ACK method (XEN) Using local APIC timer interrupts. (XEN) calibrating APIC timer ... (XEN) ..... CPU clock speed is 2000.1293 MHz. (XEN) ..... host bus clock speed is 200.0128 MHz. (XEN) ..... bus_scale = 0x0000CCD7 (XEN) Platfor...
2010 Jan 26
1
Bug#567025: xen-hypervisor-3.4-amd64: unhandled page fault while initializing dom0
...) CPU: Processor Core ID: 3 (XEN) Intel machine check reporting enabled on CPU#15. (XEN) CPU15: Thermal monitoring enabled (TM1) (XEN) CMCI: find owner on CPU15 (XEN) CMCI: CPU15 owner_map[0], no_cmci_map[93] (XEN) CPU15: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz stepping 05 (XEN) Total of 16 processors activated. (XEN) ENABLING IO-APIC IRQs (XEN) -> Using new ACK method (XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1 (XEN) checking TSC synchronization across 16 CPUs: passed. (XEN) Platform timer is 14.318MHz HPET (XEN) microcode.c:73:d32767 microcode: CPU1 resumed (XEN) microcode.c...