Hi Gary,

It looks like there was already "-" support for the CCS column. Was it not working, or did you add the parens just to make it clearer to the reader what it is matching on?

thanks,

Chris

On 3/22/19 1:18 AM, [email protected] wrote:
The M and CCS columns from jstat output can present a dash("-")
for NaN values, such as :

----------System.out:(13/1261)----------
  S0     S1     E      O      M     CCS    YGC     YGCT    FGC    FGCT    CGC    CGCT     GCT   
  0.00   0.00   0.00   0.00      -      -      0    0.000     0    0.000     0    0.000    0.000
  0.00   0.00   0.00   0.00      -      -      0    0.000     0    0.000     0    0.000    0.000
  0.00   0.00   0.00   0.00      -      -      0    0.000     0    0.000     0    0.000    0.000
  0.00   0.00   0.00   0.00      -      -      0    0.000     0    0.000     0    0.000    0.000
  0.00   0.00   0.00   0.00      -      -      0    0.000     0    0.000     0    0.000    0.000
  0.00   0.00   0.00   0.00      -      -      0    0.000     0    0.000     0    0.000    0.000
  0.00   0.00   0.00   0.00      -  28.19      1    0.571     0    0.000     0    0.000    0.571
  0.00 100.00   0.00  14.85  31.29  28.19      1    0.571     0    0.000     0    0.000    0.571
  0.00 100.00   0.00  14.85  31.29  28.19      1    0.571     0    0.000     0    0.000    0.571
  0.00 100.00   0.00  14.85  31.29  28.19      1    0.571     0    0.000     0    0.000    0.571

This proposed fix updates the awk scripts which are checking output lines.
For the M and CCS columns, allow either a floating point value or a dash.
e.g. "([0-9]+\.[0-9]+|-)"

  Webrev: http://cr.openjdk.java.net/~gadams/8221164/webrev/
  Issue:  https://bugs.openjdk.java.net/browse/JDK-8221164




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