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30c2596512
Currently, we read from `/proc/diskstats` which is found to be un-reliable in k8s environments. We can read from `sysfs` instead. Also, cache the latest drive io stats to find the diff and update the metrics.
63 lines
1.7 KiB
Go
63 lines
1.7 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package disk
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// Info stat fs struct is container which holds following values
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// Total - total size of the volume / disk
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// Free - free size of the volume / disk
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// Files - total inodes available
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// Ffree - free inodes available
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// FSType - file system type
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// Major - major dev id
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// Minor - minor dev id
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// Devname - device name
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type Info struct {
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Total uint64
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Free uint64
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Used uint64
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Files uint64
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Ffree uint64
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FSType string
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Major uint32
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Minor uint32
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Name string
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Rotational *bool
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NRRequests uint64
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}
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// IOStats contains stats of a single drive
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type IOStats struct {
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ReadIOs uint64
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ReadMerges uint64
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ReadSectors uint64
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ReadTicks uint64
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WriteIOs uint64
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WriteMerges uint64
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WriteSectors uint64
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WriteTicks uint64
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CurrentIOs uint64
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TotalTicks uint64
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ReqTicks uint64
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DiscardIOs uint64
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DiscardMerges uint64
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DiscardSectors uint64
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DiscardTicks uint64
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FlushIOs uint64
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FlushTicks uint64
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}
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