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Server: Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.4.33
System: Linux li317-225.members.linode.com 3.10.0-1062.12.1.el7.x86_64 #1 SMP Tue Feb 4 23:02:59 UTC 2020 x86_64
User: apache (48)
PHP: 7.4.33
Disabled: NONE
$ pwd: /usr/share/systemtap/examples/io/
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File: //usr/share/systemtap/examples/io/iodevstats.txt
# stap iodevstats.stp -T 1

starting probe

                                       read     read             write    write
            name   device     read   KB tot    B avg    write   KB tot    B avg
           sleep 253,    0        2        0      368        0        0        0
          stapio 253,    0        4        0      132        0        0        0
          stapio   0,    7        7        0        3        0        0        0
          stapio   0,    8        0        0        0        1        0       15
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