<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Mon, May 22, 2017 at 1:41 PM, gunnar.wagner <span dir="ltr"><<a href="mailto:gunnar.wagner@netcologne.de" target="_blank">gunnar.wagner@netcologne.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div class="m_-5003569436033506625moz-cite-prefix">On 5/22/2017 2:35 PM, Fajar A. Nugraha
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<div class="gmail_quote">On Mon, May 22, 2017 at 1:09 PM,
gunnar.wagner <span dir="ltr"><<a href="mailto:gunnar.wagner@netcologne.de" target="_blank">gunnar.wagner@netcologne.de</a>></span>
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On 5/22/2017 11:55 AM, Fajar A. Nugraha wrote:<br>
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subvolume with btrfs does not provide correct df.<br>
zfs dataset provide correct df.<br>
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isn't btrfs subvolume usage /path/to/subvolume the
tool to get the correct usage data?</blockquote>
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<div>The requirement was that "df on the container must
return the correct output" w.r.t. size and usage.</div>
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yes, I saw that. Just thought as long as you can get reliable usage
data one wouldn't mind the particular tool all too much.<br>
<br></div></blockquote><div><br></div><div></div></div><br></div><div class="gmail_extra">It's kinda similar when people were reading CPU and memory usage. With cgroups (which is how lxc limits and account resource usage), the correct place to look was /sys/fs/cgroups. Yet people (and tools they use, like htop) continue to look at "traditional" places (e.g. /proc/cpuinfo, /proc/meminfo, etc). And people complain because "top" gives "incorrect" result inside a container. Thus lxcfs was created to satisfy that requirement.</div><div class="gmail_extra"><br></div><div class="gmail_extra">-- </div><div class="gmail_extra">Fajar</div></div>