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Full Discussion: Profiling results and SMP
Top Forums Programming Profiling results and SMP Post 302905264 by achenle on Tuesday 10th of June 2014 03:28:55 PM
Old 06-10-2014
Can you disable CPUs and/or hyperthreading as necessary via BIOS settings on your new hardware to limit the OS to only one CPU thread? That seems to me to be a really easy test to run that will provide good information.
 

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SMP_REP_MANUFACTURER(8) 					     SMP_UTILS						   SMP_REP_MANUFACTURER(8)

NAME
smp_rep_manufacturer - invoke REPORT MANUFACTURER INFORMATION SMP function SYNOPSIS
smp_rep_manufacturer [--help] [--hex] [--interface=PARAMS] [--raw] [--sa=SAS_ADDR] [--verbose] [--version] SMP_DEVICE[,N] DESCRIPTION
Sends a SAS Management Protocol (SMP) REPORT MANUFACTURER INFORMATION request function to a SMP target. The SMP target is identified by the SMP_DEVICE and the SAS_ADDR. Depending on the interface, the SAS_ADDR may be deduced from the SMP_DEVICE. With one interface there is one SMP_DEVICE per machine so the SMP_DEVICE,N syntax is needed to differentiate between HBAs if there are multiple present. OPTIONS
Mandatory arguments to long options are mandatory for short options as well. -h, --help output the usage message then exit. -H, --hex output the response in hexadecimal. -I, --interface=PARAMS interface specific parameters. In this case "interface" refers to the path through the operating system to the SMP initiator. See the smp_utils man page for more information. -r, --raw send the response to stdout in binary. All error messages are sent to stderr. -s, --sa=SAS_ADDR specifies the SAS address of the SMP target device. Typically this is an expander. This option may not be needed if the SMP_DEVICE has the target's SAS address within it. The SAS_ADDR is in decimal but most SAS addresses are shown in hexadecimal. To give a number in hexadecimal either prefix it with '0x' or put a trailing 'h' on it. -v, --verbose increase the verbosity of the output. Can be used multiple times -V, --version print the version string and then exit. CONFORMING TO
The SMP REPORT MANUFACTURER function was introduced in SAS-1, with small additions in SAS-1.1 . AUTHORS
Written by Douglas Gilbert. REPORTING BUGS
Report bugs to <dgilbert at interlog dot com>. COPYRIGHT
Copyright (C) 2006-2008 Douglas Gilbert This software is distributed under a FreeBSD license. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR- POSE. SEE ALSO
smp_utils, smp_discover(smp_utils) smp_utils-0.93 January 2008 SMP_REP_MANUFACTURER(8)
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