cern-it-sdc-id/tdavixfile-bench-tools
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GET THE BENCH git clone https://github.com/cern-it-sdc-id/tdavixfile-bench-tools.git tdavixfile-bench-tools HOW TO RUN THE BENCH 1- INSTALL a ROOT + TDAVIXFILE environment See https://dmc.web.cern.ch/projects/davix/root-and-davix-tutorial for more details 2- Configure your system.rootrc depending of your server usage Example : Enable grid support for WLCG See here https://dmc.web.cern.ch/projects/davix/root-and-davix-tutorial#configTDavixFile 3- install a C++ compiler + root headers files Example under SL6: sudo yum install gcc-c++ sudo yum install root-physics root-tree root-tree-player root-tree-viewer root-graf3d 4- run ./build.sh 5- download the test file http://root.cern.ch/files/h1big.root and place it on your tested server 6- run ./testEvent [yourUrl] Example ./testEvent http://root.cern.ch/files/h1big.root Example of result : Number of branches in the cache ...: 2 Cache Efficiency ..................: 0.988857 Cache Efficiency Rel...............: 0.999374 Learn entries......................: 1 Cached Reading.....................: 5481918 bytes in 1 transactions Reading............................: 4619 bytes in 3 uncached transactions Readahead..........................: 256000 bytes with overhead = 0 bytes Average transaction................: 5481.918000 Kbytes Number of blocks in current cache..: 4792, total size: 5591952 Bytes read = 0 Real Time = 2.943 s, CPUtime = 0.740 s
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