Running the Nytro Profiler and Converter in the Manual Mode
NytroProfiler_<64> -D disk0 -CFG san -SZ 500 -T Windows -I xperf_trace.txt -O trace_results
Type the following commands at the command prompt to manually run the Xperf mechanism:
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To start tracing: xperf -on disk_io -f qpc_result.etl
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To stop tracing: xperf -stop
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To generate the Xperf trace file: xperf -i qpc_result.etl -a diskio -detail > xperf_trace
To manually run the Nytro Profiler under various scenarios, type this command at the command prompt:
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Step 1: Run Xperf on the machine as described in the preceding bulleted list.
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Step 2: Run NytroProfiler_64.exe -d disk0 -CFG das -SZ 200 -t Windows -i xperf_trace.txt -o trace_out
The Nytro Profiler generates a trace.qt file for a previously collected xperf_trace file on any Windows machine.
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If you want to collect traces on a Linux machine by using blktrace, and then run the Nytro Profiler on a Windows machine:
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Step 1: Run blktrace/blkparse (see Running the Nytro Profiler and the Converter in the Manual Mode)
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Step 2: Run NytroProfiler_64.exe -D /dev/sdb:/dev/sdga -CFG das -SZ 200:400 -T linux -P dev_info -I trace -O trace_out
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Copy the /proc/partitions on machine A (Linux) to machine B (Windows).
NOTE Step 1 runs on a Linux machine and Step 2 runs on a Windows machine. You must provide the blktrace file generated from Step 1 as input to Step 2. You must also provide a partitions file information in Step 2 (see Running the Nytro Profiler and the Converter in the Manual Mode).
DB15-000969-03 - December 2012 |
Copyright© 2012 by LSI Corporation. All rights reserved. |