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cpuinfo.go
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cpuinfo.go
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/*
* Copyright (c) 2019. aberic - All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package proc
import (
"github.com/aberic/gnomon"
"strings"
"sync"
)
var (
cpuGroupInstance *CPUGroup
cpuGroupInstanceOnce sync.Once
)
// CPUGroup 中央处理器信息组
type CPUGroup struct {
CPUArray []*CPUInfo
}
func obtainCPUGroup() *CPUGroup {
cpuGroupInstanceOnce.Do(func() {
if nil == cpuGroupInstance {
cpuGroupInstance = &CPUGroup{CPUArray: []*CPUInfo{}}
}
})
return cpuGroupInstance
}
// Info CPUGroup 对象
func (c *CPUGroup) Info() error {
return c.doFormatCPUGroup(gnomon.StringBuild(FileRootPath(), "/cpuinfo"))
}
// FormatCPUGroup 将文件内容转为 CPUGroup 对象
func (c *CPUGroup) doFormatCPUGroup(filePath string) error {
data, err := gnomon.FileReadLines(filePath)
if nil == err {
index := 0
for _, d := range data {
if gnomon.StringIsEmpty(d) {
if len(c.CPUArray) <= index || gnomon.StringIsEmpty(c.CPUArray[index].Processor) {
continue
}
index++
continue
}
if len(c.CPUArray) <= index {
c.CPUArray = append(c.CPUArray, &CPUInfo{})
}
c.CPUArray[index].formatCPUInfo(d)
}
} else {
return err
}
return nil
}
// CPUInfo 中央处理器信息
type CPUInfo struct {
Processor string // 逻辑处理器的id(0)
VendorID string // CPU制造商(GenuineIntel)
CPUFamily string // CPU产品系列代号(6)
Model string // CPU属于其系列中的哪一代号(79)
ModelName string // CPU属于的名字、编号、主频(Intel(R) Xeon(R) CPU E5-26xx v4)
Stepping string // CPU属于制作更新版本(1)
Microcode string // (0x1)
CPUMHz string // CPU的实际使用主频(2394.454)
CacheSize string // CPU二级cache大小(4096 KB)
PhysicalID string // 物理封装的处理器的id，从0开始，说明我的服务器有两个物理CPU(0)
Siblings string // 位于相同物理封装的处理器中的逻辑处理器的数量(1)
CoreID string // 当前物理核在其所处的CPU中的编号，该编号不一定连续(0)
CPUCores string // 该逻辑核所处CPU的物理核数(1)
ApicID string // 用来区分不同逻辑和的编号，每个逻辑和的此编号不同，不一定连续(0)
InitialApicID string // (0)
Fpu string // 是否具有浮点运算单元(yes)
FpuException string // 是否支持浮点计算异常(yes)
CPUIDLevel string // 执行cpuid指令前，eax寄存器中的值，不同cpuid指令会返回不同内容(13)
WP string // 表明当前CPU是否在内核态支持对用户空间的写保护(yes)
Flags []string // 当前CPU支持的功能(fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch bmi1 avx2 bmi2 rdseed adx xsaveopt)
Bogomips string // 测算CPU速度(4788.90)
ClFlushSize string // 每次刷新缓存的大小单位(64)
CacheAlignment string // 缓存地址对齐单位(64)
AddressSizes string // 可访问地址空间为数(40 bits physical, 48 bits virtual)
PowerManagement string // 电源管理相关
}
func (c *CPUInfo) formatCPUInfo(lineStr string) {
if strings.HasPrefix(lineStr, "processor") {
c.Processor = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "vendor") {
c.VendorID = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "cpu f") {
c.CPUFamily = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "model n") {
c.ModelName = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "model") {
c.Model = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "stepping") {
c.Stepping = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "microcode") {
c.Microcode = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "cpu M") {
c.CPUMHz = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "cache s") {
c.CacheSize = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "physical") {
c.PhysicalID = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "siblings") {
c.Siblings = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "core") {
c.CoreID = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "cpu c") {
c.CPUCores = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "apicid") {
c.ApicID = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "initial") {
c.InitialApicID = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "fpu_exception") {
c.FpuException = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "fpu") {
c.Fpu = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "cpuid") {
c.CPUIDLevel = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "wp") {
c.WP = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "flags") {
c.Flags = strings.Split(strings.Split(lineStr, ":")[1], " ")
} else if strings.HasPrefix(lineStr, "bogomips") {
c.Bogomips = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "clflush") {
c.ClFlushSize = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "cache_") {
c.CacheAlignment = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
} else if strings.HasPrefix(lineStr, "address sizes") {
c.AddressSizes = gnomon.StringTrim(strings.Split(lineStr, ":")[1])
}
}