hi,
we all know /proc is about the information of active process,
I have just read an artical which said you can use /proc/cpuinfo,
/proc/net./proc/meminfo etc. to know about some hardware
information .But I want to know how to use with command line? (1 Reply)
I did a search on this, but didn't find exactly the answer I'm looking for. What exactly is the proc directory for? Showing processes spawned by users? I ask because I have some very large files in that directory by multiple users and its affecting my disk usage. Can you limit how many... (2 Replies)
Hi,
What are the various way's to fix /proc folder in redhat linux 7.2 and how to verify /proc folder is proper or croupted?
Thank in advance
Bache Gowda (7 Replies)
:)
hi all !
Please help me
When I select data from oracle with proc * C prog.
I count the number of rows
For example the total rows is 1000000
but the number of result return is a limit number 5000 for ex
So How can I know this limit (5 Replies)
Perhaps this is a very dummy question but sorry I don't know other place to do it. We just buy a new cluster of Xeon machines but there is something I don't understand and perhaps someone can help me.
The more /proc/cpuinfo produces the following output (just part of it).
processor : 0... (1 Reply)
Hi,
I am trying to calculate the CPU Usage by getting the difference between the idle time reported by /proc/stat at 2 different intervals. Now the 4th entry in the first line of /proc/stat will give me the 'idle time'. But I also came across /proc/uptime that gives me 2 entries : 1st one as the... (0 Replies)
So, I'm looking over /proc/cpuinfo and have a question... I've read that "siblings" refers to hyperthreading, but that seems odd considering the contents of cpuinfo. Here's a part:
model name : Intel(R) Xeon(R) CPU E5410 @ 2.33GHz
physical id : 0
siblings : 4
core... (1 Reply)
If you are adding the kernel module without any module parameter passing, it should print out following information to info1 file so that user can make read access to info1 file (via, for example, cat /proc/info1):
• Processor type
• Kernel version
• Total number of the processes currently... (1 Reply)
Hi,
I wanted to understand what exactly /proc/cpuinfo shows?
We have a machine with following specification...
(2x) Intel Xeon 6-core processors
So, ideally it shouls have 12processors, but the output on /proc/cpuinfo shows 24 processors.
Can someone please explain how this is... (3 Replies)
Discussion started by: shrshah64
3 Replies
LEARN ABOUT CENTOS
papi_num_cmp_hwctrs
PAPI_num_cmp_hwctrs(3) PAPI PAPI_num_cmp_hwctrs(3)NAME
PAPI_num_cmp_hwctrs -
Return the number of hardware counters for the specified component.
SYNOPSIS Detailed Description
PAPI_num_cmp_hwctrs() returns the number of counters present in the specified component. By convention, component 0 is always the cpu.
On some components, especially for CPUs, the value returned is a theoretical maximum for estimation purposes only. It might not be possible
to easily create an EventSet that contains the full number of events. This can be due to a variety of reasons: 1). Some CPUs (especially
Intel and POWER) have the notion of fixed counters that can only measure one thing, usually cycles. 2). Some CPUs have very explicit rules
about which event can run in which counter. In this case it might not be possible to add a wanted event even if counters are free. 3). Some
CPUs halve the number of counters available when running with SMT (multiple CPU threads) enabled. 4). Some operating systems 'steal' a
counter to use for things such as NMI Watchdog timers. The only sure way to see if events will fit is to attempt adding events to an
EventSet, and doing something sensible if an error is generated.
PAPI_library_init() must be called in order for this function to return anything greater than 0.
C Interface:
#include <papi.h>
int PAPI_num_cmp_hwctrs(int cidx );
Parameters:
cidx -- An integer identifier for a component. By convention, component 0 is always the cpu component.
Example
* // Query the cpu component for the number of counters.
* printf(
*
Returns:
On success, this function returns a value greater than zero.
A zero result usually means the library has not been initialized.
Author
Generated automatically by Doxygen for PAPI from the source code.
Version 5.2.0.0 Tue Jun 17 2014 PAPI_num_cmp_hwctrs(3)