mirror of
https://github.com/prometheus/node_exporter
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8d9c7ca659
All tools in OpenBSD base system use swpginuse instead of swpgonly for reporting swap usage (snmpd, swapctl, top, vmstat), so let memory collector use that as well for consistency.
66 lines
1.9 KiB
Go
66 lines
1.9 KiB
Go
// Copyright 2015 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build openbsd
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// +build !nomeminfo
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package collector
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import (
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"fmt"
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)
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/*
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/sysctl.h>
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int
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sysctl_uvmexp(struct uvmexp *uvmexp)
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{
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static int uvmexp_mib[] = {CTL_VM, VM_UVMEXP};
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size_t sz = sizeof(struct uvmexp);
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if(sysctl(uvmexp_mib, 2, uvmexp, &sz, NULL, 0) < 0)
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return -1;
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return 0;
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}
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*/
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import "C"
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func (c *meminfoCollector) getMemInfo() (map[string]float64, error) {
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var uvmexp C.struct_uvmexp
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if _, err := C.sysctl_uvmexp(&uvmexp); err != nil {
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return nil, fmt.Errorf("sysctl CTL_VM VM_UVMEXP failed: %v", err)
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}
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ps := float64(uvmexp.pagesize)
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// see uvm(9)
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return map[string]float64{
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"active_bytes": ps * float64(uvmexp.active),
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"cache_bytes": ps * float64(uvmexp.vnodepages),
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"free_bytes": ps * float64(uvmexp.free),
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"inactive_bytes": ps * float64(uvmexp.inactive),
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"size_bytes": ps * float64(uvmexp.npages),
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"swap_size_bytes": ps * float64(uvmexp.swpages),
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"swap_used_bytes": ps * float64(uvmexp.swpginuse),
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"swapped_in_pages_bytes_total": ps * float64(uvmexp.pgswapin),
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"swapped_out_pages_bytes_total": ps * float64(uvmexp.pgswapout),
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"wired_bytes": ps * float64(uvmexp.wired),
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}, nil
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}
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