RHEL7/8: disk read/write not visible in pcp dstat
Issue
When pcp dstat
is executed, it is not showing disk read and write values:
[root@host ~]# pcp dstat
You did not select any stats, using -cdngy by default.
----total-usage---- -dsk/total- -net/total- ---paging-- ---system--
usr sys idl wai stl| read writ| recv send| in out | int csw
12 9 58 20 0| | 23M 19M| 0 0 | 88k 183k
14 8 58 18 0| | 34M 27M| 0 0 | 105k 215k
Environment
- Red Hat Enterprise Linux (RHEL) 7 and 8
- Performance Co-Pilot (PCP)
- RHEL7: seen on
pcp-4.3.2
, likely also earlier versions affected - RHEL8: versions before
pcp-5.0.2-5.el8
- RHEL7: seen on
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.