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  1. Lustre
  2. LU-8964

use parallel I/O to improve performance on machines with slow single thread performance

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      On machines with slow single thread performance like KNL the bottleneck of I/O performance moved into code which just copy memory from one buffer to other (from user space to kernel or vice versa). In current Lustre implementation all I/O performs in single thread and this is become an issue for KNL. Significantly improve performance can be with solution which do parallel memory transfer of large buffers.

       

        1. 40ost_rpc_stats.txt
          91 kB
        2. read_readahead_test.c
          3 kB

            simmonsja James A Simmons
            dmiter Dmitry Eremin (Inactive)
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