high memory usage by d21

Martin Sebor msebor@redhat.com
Thu Feb 7 01:17:00 GMT 2019


While running GCC tests I happened to catch a glimpse of some d21
processes with much higher resident memory usage than others, on
the order of 1GB to almost 2GB.  Is that normal?

Below is a snapshot I took.  I saw a few others that were higher.
(It's not causing any problems for me so I'm mostly just wondering
if it's a known issue or some hidden inefficiency that might be
worth look into).

   PID        VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
17678      238152 219608  24592 R  99.3   0.3   0:06.67 d21
19567      204024 187432  24584 R  99.3   0.3   0:05.13 d21
20679      269256 248392  63708 R  99.3   0.4   0:03.25 cc1plus
16862     1615756   1.3g  19684 R  99.0   2.1   0:09.04 d21      <<<<
20882      202480 189620  24404 R  91.4   0.3   0:02.75 d21
22394      194580 172276  82416 R  40.2   0.3   0:01.21 cc1plus
23167      223380 204020  19236 R  22.6   0.3   0:00.68 d21
23187      545140 310568  16704 R  21.9   0.5   0:00.66 d21
23241      177708 156108  68560 R  18.3   0.2   0:00.55 cc1plus
23341      152144 129920  73760 R   9.6   0.2   0:00.29 cc1plus

Martin



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