I've recently noticed that the 'xload' I routinely run shows zero load
even with compute-bound processes running. This is on both Cygwin
pre-3.4.0 as well as 3.3.4. A test program, shown below, indicates that
getloadavg() is returning with 0 status, i.e. not an error but no elems
of the passed-in array updated.
Stepping with gdb through the test program seems weird within the
loadavginfo::load_init method. Single-stepping at line loadavg.cc:68 goes
to strace.h:52 and then to _sigbe ?!
I had recently updated both Cygwin and Windows 10 to latest at the same
time so I cannot say when the failure started. Last day or two at most.
..mark
-------------------
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
int
main (int argc, char **argv)
{
double loadavg[3];
int res = getloadavg (loadavg, 3);
if (res == -1)
return 0xFF;
if (res > 0)
for (int i = 0; i < res; i++)
printf ("%f.2 ", loadavg[i]);
return res;
}
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