Changes between Initial Version and Version 1 of Benchmarking

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Timestamp:
12/08/08 12:02:08 (12 months ago)
Author:
robl (IP: 140.221.11.29)
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  • Benchmarking

    v1 v1  
     1== Benchmark programs ==  
     2  * IOR (http://sourceforge.net/projects/ior-sio) has a 'driver' for pnetcdf 
     3  * The FLASH I/O kernel (http://www-unix.mcs.anl.gov/pio-benchmark/code/flash-argonne-20060913.tar.gz) will measure several write-only workloads 
     4   
     5 
     6== Notes and suggestions == 
     7 
     8Be mindful of benchmarks which write large contiguous chunks of data.  While 
     9interesting, it might not be what a scientific application using pnetcdf would 
     10actually do.   
     11 
     12Older versions of IOR triggered a performance bug on some Lustre file systems. 
     13Sometimes slow write performance on Lustre can be fixed by disabling the "data 
     14sieving" optimization.  See HintsForPnetcdf for more information.