mirror of
https://github.com/open-policy-agent/opa.git
synced 2026-08-12 19:32:48 -06:00
Stephan Renatus
4ab2ac0c61
* server: port compile API Also adds e2e tests: These include coverage for ucast in the prisma setting, and thus require some JS runtime. * e2e: selectively skip e2e Compile API tests ...for macos runs, and for the go-compat suites. * server: accept timer_rego_external_resolve_ns metrics with value 0 When running the tests in a loop for a while, I would see values of 0ns for this metric. However, comparing with its non-zero values, which are often 41 or 42ns, it seems like this is just not happening in this code path. So if "almost nothing" actually goes below 1ns, it's OK. * e2e: split dep-heavy e2e tests into their own go module * Makefile: export DOCKER_RUNNING (make e2e read it) --------- Co-authored-by: Philip Conrad <philip@chariot-chaser.net> Signed-off-by: Stephan Renatus <stephan.renatus@gmail.com>
117 lines
3.1 KiB
Go
117 lines
3.1 KiB
Go
// Copyright 2025 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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package procfs
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import (
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"os"
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"strconv"
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"strings"
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"github.com/prometheus/procfs/internal/util"
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)
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// - https://man7.org/linux/man-pages/man5/proc_pid_statm.5.html
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// ProcStatm Provides memory usage information for a process, measured in memory pages.
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// Read from /proc/[pid]/statm.
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type ProcStatm struct {
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// The process ID.
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PID int
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// total program size (same as VmSize in status)
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Size uint64
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// resident set size (same as VmRSS in status)
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Resident uint64
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// number of resident shared pages (i.e., backed by a file)
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Shared uint64
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// text (code)
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Text uint64
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// library (unused since Linux 2.6; always 0)
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Lib uint64
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// data + stack
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Data uint64
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// dirty pages (unused since Linux 2.6; always 0)
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Dt uint64
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}
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// NewStatm returns the current status information of the process.
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// Deprecated: Use p.Statm() instead.
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func (p Proc) NewStatm() (ProcStatm, error) {
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return p.Statm()
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}
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// Statm returns the current memory usage information of the process.
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func (p Proc) Statm() (ProcStatm, error) {
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data, err := util.ReadFileNoStat(p.path("statm"))
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if err != nil {
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return ProcStatm{}, err
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}
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statmSlice, err := parseStatm(data)
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if err != nil {
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return ProcStatm{}, err
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}
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procStatm := ProcStatm{
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PID: p.PID,
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Size: statmSlice[0],
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Resident: statmSlice[1],
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Shared: statmSlice[2],
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Text: statmSlice[3],
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Lib: statmSlice[4],
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Data: statmSlice[5],
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Dt: statmSlice[6],
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}
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return procStatm, nil
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}
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// parseStatm return /proc/[pid]/statm data to uint64 slice.
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func parseStatm(data []byte) ([]uint64, error) {
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var statmSlice []uint64
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statmItems := strings.Fields(string(data))
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for i := 0; i < len(statmItems); i++ {
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statmItem, err := strconv.ParseUint(statmItems[i], 10, 64)
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if err != nil {
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return nil, err
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}
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statmSlice = append(statmSlice, statmItem)
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}
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return statmSlice, nil
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}
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// SizeBytes returns the process of total program size in bytes.
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func (s ProcStatm) SizeBytes() uint64 {
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return s.Size * uint64(os.Getpagesize())
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}
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// ResidentBytes returns the process of resident set size in bytes.
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func (s ProcStatm) ResidentBytes() uint64 {
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return s.Resident * uint64(os.Getpagesize())
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}
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// SHRBytes returns the process of share memory size in bytes.
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func (s ProcStatm) SHRBytes() uint64 {
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return s.Shared * uint64(os.Getpagesize())
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}
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// TextBytes returns the process of text (code) size in bytes.
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func (s ProcStatm) TextBytes() uint64 {
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return s.Text * uint64(os.Getpagesize())
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}
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// DataBytes returns the process of data + stack size in bytes.
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func (s ProcStatm) DataBytes() uint64 {
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return s.Data * uint64(os.Getpagesize())
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}
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