[svn-r4802] Description:

    The default minimum xfer size of 1K was way too slow for
    parallel file system like the PFS of Tflops.  Set it to
    128K to complete soon for default settings.
Platforms tested:
    Tflops, modi4.

1 files changed, 2 insertions, 2 deletions

diff --git a/perform/pio_perf.c b/perform/pio_perf.c
index a9b0966..2db68e9 100644
--- a/perform/pio_perf.c
+++ b/perform/pio_perf.c
@@ -695,7 +695,7 @@ parse_command_line(int argc, char *argv[])
     cl_opts->max_num_procs = 1;
     cl_opts->min_num_procs = 1;
     cl_opts->max_xfer_size = 1 * ONE_MB;
-    cl_opts->min_xfer_size = 1 * ONE_KB;
+    cl_opts->min_xfer_size = 128 * ONE_KB;
 
     while ((opt = get_option(argc, (const char **)argv, s_opts, l_opts)) != EOF) {
         switch ((char)opt) {
@@ -833,7 +833,7 @@ usage(const char *prog)
         fprintf(stdout, "     -p N, --min-num-processes=N Minimum number of processes to use [default: 1]\n");
         fprintf(stdout, "     -r, --raw                   Run raw (UNIX) performance test\n");
         fprintf(stdout, "     -X S, --max-xfer-size=S     Maximum transfer buffer size [default: 1M]\n");
-        fprintf(stdout, "     -x S, --min-xfer-size=S     Minimum transfer buffer size [default: 1K]\n");
+        fprintf(stdout, "     -x S, --min-xfer-size=S     Minimum transfer buffer size [default: 128K]\n");
         fprintf(stdout, "\n");
         fprintf(stdout, "  F - is a filename.\n");
         fprintf(stdout, "  N - is an integer >=0.\n");