forked from ccfos/huatuo
97 lines
3.2 KiB
Go
97 lines
3.2 KiB
Go
// Copyright 2025 The HuaTuo Authors
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//
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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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package collector
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import (
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"bufio"
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"os"
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"strconv"
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"strings"
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"huatuo-bamai/internal/conf"
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"huatuo-bamai/internal/log"
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"huatuo-bamai/pkg/metric"
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"huatuo-bamai/pkg/tracing"
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)
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type vmStatCollector struct{}
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func init() {
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tracing.RegisterEventTracing("vmstat", newVMStatCollector)
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}
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var vmStatMetricDesc = map[string]string{
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"allocstall_normal": "host direct reclaim count on normal zone",
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"allocstall_movable": "host direct reclaim count on movable zone",
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"compact_stall": "memory compaction count",
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"nr_active_anon": "anonymous pages on active lru",
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"nr_active_file": "file pages on active lru",
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"nr_boost_pages": "kswapd boost pages",
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"nr_dirty": "dirty pages",
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"nr_free_pages": "free pages in buddy system",
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"nr_inactive_anon": "anonymous pages on inactive lru",
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"nr_inactive_file": "file pages on inactive lru",
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"nr_kswapd_boost": "kswapd boosting count",
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"nr_mlock": "mlocked pages",
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"nr_shmem": "shared memory pages",
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"nr_slab_reclaimable": "reclaimable slab pages",
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"nr_slab_unreclaimable": "unreclaimable slab pages",
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"nr_unevictable": "unevictable pages",
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"nr_writeback": "writing-back pages",
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"numa_pages_migrated": "numa migrated pages",
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"pgdeactivate": "pages deactivated from active lru to inactive lru",
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"pgrefill": "pages scanned on active lru",
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"pgscan_direct": "scanned pages in host direct reclaim",
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"pgscan_kswapd": "scanned pages in host kswapd reclaim",
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"pgsteal_direct": "reclaimed pages in host direct reclaim",
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"pgsteal_kswapd": "reclaimed pages in host kswapd reclaim",
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}
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func newVMStatCollector() (*tracing.EventTracingAttr, error) {
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return &tracing.EventTracingAttr{
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TracingData: &vmStatCollector{},
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Flag: tracing.FlagMetric,
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}, nil
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}
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func (c *vmStatCollector) Update() ([]*metric.Data, error) {
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filter := newFieldFilter(conf.Get().MetricCollector.Vmstat.ExcludedMetrics,
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conf.Get().MetricCollector.Vmstat.IncludedMetrics)
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file, err := os.Open("/proc/vmstat")
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if err != nil {
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log.Error("Fail to open vmstat")
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return nil, err
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}
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defer file.Close()
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scanner := bufio.NewScanner(file)
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var metrics []*metric.Data
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for scanner.Scan() {
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parts := strings.Fields(scanner.Text())
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if filter.ignored(parts[0]) {
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log.Debugf("Ignoring vmstat metric: %s", parts[0])
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continue
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}
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value, err := strconv.ParseFloat(parts[1], 64)
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if err != nil {
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log.Error("Fail to strconv")
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return nil, err
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}
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metrics = append(metrics,
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metric.NewGaugeData(parts[0], value, vmStatMetricDesc[parts[0]], nil))
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}
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return metrics, nil
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}
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