This enables tcp stats (listen, established, syn, time_wait, close) in
dstat to allow us to get a high-level view of performance changes in
the system during gate runs.
Change-Id: Ifbffbed22446e7e6a3b825c18266b63d2f2e7718
Right now we under pressure because of increasing memory consumption in
dsvm jobs. So it'll be good to see which process is eating the most ram
at a given time. It may not end up being useful, but it doesn't hurt to
at least display just in case.
Change-Id: I096bf4b425db51358240335e41f6238d1ec1bb40
Future work toward visualization of DevStack and devstack-gate performance
would benefit greatly from the availability of machine-parsable DStat output.
This patch outputs an additional logfile to $LOGDIR, `dstat-csv.log`, using
DStat's built-in CSV logging functionality.
An additional instance of DStat is started during start_dstat that outputs
to CSV-formatted text without `--top-cpu-adv` and `-top-io-adv` enabled, as
these plugins are currently incompatible with CSV output. To facilitate this,
a new `dstat.sh` script is added to $TOP_DIR/tools/ to act as a daemon to
manage the two processes.
Change-Id: I826c94c35b6a109308b4f132c181ff7a1f63bc7b
Depends-On: I534fb1f9356a7948d2fec0aecc7f275e47362a11