我的计算机上 import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { FormsModule,ReactiveFormsModule } from '@angular/forms';
import { routing } from './app.rotes';
import { UserCheck } from './UserCheck';
import { LogMessage } from './LogMessage';
import { AccessDenied } from './AccessDenied';
import { UserDetailGuard } from './UserDetailGuard'
@NgModule({
imports: [ BrowserModule,FormsModule,ReactiveFormsModule,routing,],
declarations: [ AppComponent,AccessDenied ],
bootstrap: [ AppComponent],
providers: [UserCheck,LogMessage,UserDetailGuard]
})
export class AppModule { }
只支持一组有限的统计信息：
perf因此，我甚至无法获得循环计数：
charles@charlesSpark-VirtualBox:~$ uname -r
4.4.0-36-generic
charles@charlesSpark-VirtualBox:~$ perf --version
perf version 4.4.16
charles@charlesSpark-VirtualBox:~$ ls /sys/devices
breakpoint LNXSYSTM:00 msr pci0000:00 platform pnp0 power software system tracepoint virtual
$ perf list
List of pre-defined events (to be used in -e):
alignment-faults [Software event]
bpf-output [Software event]
context-switches OR cs [Software event]
cpu-clock [Software event]
cpu-migrations OR migrations [Software event]
dummy [Software event]
emulation-faults [Software event]
major-faults [Software event]
minor-faults [Software event]
page-faults OR faults [Software event]
task-clock [Software event]
msr/smi/ [Kernel PMU event]
msr/tsc/ [Kernel PMU event]
power/energy-cores/ [Kernel PMU event]
power/energy-gpu/ [Kernel PMU event]
power/energy-pkg/ [Kernel PMU event]
power/energy-ram/ [Kernel PMU event]
rNNN [Raw hardware event descriptor]
cpu/t1=v1[,t2=v2,t3 ...]/modifier [Raw hardware event descriptor]
(see 'man perf-list' on how to encode it)
mem:<addr>[/len][:access] [Hardware breakpoint]
在查看http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/tools/perf/之前，我想我会问。我已经安装了pacakges charles@charlesSpark-VirtualBox:~$ perf stat -e cycles pwd
/home/charles
Performance counter stats for 'pwd':
<not supported> cycles
0.027393147 seconds time elapsed
linux-tools-common和其他几个。