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From: Paolo Valente <paolo.valente@linaro.org>
To: Tejun Heo <tj@kernel.org>, linux-block <linux-block@vger.kernel.org>
Subject: iocost_monitor.py tells that iocost is not enabled
Date: Tue, 4 Feb 2020 11:56:10 +0100	[thread overview]
Message-ID: <8FD4B865-5984-476F-BE47-98938D162749@linaro.org> (raw)

Hi Tejun,
the following:

$ cd linux/tools/cgroup
$ sudo python3 iocost_monitor.py sda

tells:

The kernel does not have iocost enabled

Yet:
$ cat /sys/fs/cgroup/unified/io.cost.qos 
8:0 enable=1 ctrl=user rpct=95.00 rlat=2500 wpct=95.00 wlat=5000 min=1.00 max=10000.00
$ cat /sys/block/sda/dev
8:0

If useful:
$ cat io.cost.model 
8:0 ctrl=user model=linear rbps=528156881 rseqiops=73442 rrandiops=72800 wbps=386453414 wseqiops=79718 wrandiops=73186

What am doing wrong?

Thanks,
Paolo

             reply	other threads:[~2020-02-04 10:56 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-04 10:56 Paolo Valente [this message]
2020-02-12 21:20 ` iocost_monitor.py tells that iocost is not enabled Tejun Heo

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