cmd/evm: added mem/cpu profiling

This commit is contained in:
Jeffrey Wilcke 2017-05-23 09:34:04 +02:00
parent 04b668b232
commit 3ee75bec9f
2 changed files with 44 additions and 0 deletions

View File

@ -35,6 +35,18 @@ var (
Name: "debug",
Usage: "output full trace logs",
}
MemProfileFlag = cli.StringFlag{
Name: "memprofile",
Usage: "creates a memory profile at the given path",
}
CPUProfileFlag = cli.StringFlag{
Name: "cpuprofile",
Usage: "creates a CPU profile at the given path",
}
StatDumpFlag = cli.BoolFlag{
Name: "statdump",
Usage: "displays stack and heap memory information",
}
CodeFlag = cli.StringFlag{
Name: "code",
Usage: "EVM code",
@ -93,6 +105,9 @@ func init() {
DumpFlag,
InputFlag,
DisableGasMeteringFlag,
MemProfileFlag,
CPUProfileFlag,
StatDumpFlag,
}
app.Commands = []cli.Command{
compileCommand,

View File

@ -21,6 +21,7 @@ import (
"fmt"
"io/ioutil"
"os"
"runtime/pprof"
"time"
goruntime "runtime"
@ -108,6 +109,19 @@ func runCmd(ctx *cli.Context) error {
},
}
if cpuProfilePath := ctx.GlobalString(CPUProfileFlag.Name); cpuProfilePath != "" {
f, err := os.Create(cpuProfilePath)
if err != nil {
fmt.Println("could not create CPU profile: ", err)
os.Exit(1)
}
if err := pprof.StartCPUProfile(f); err != nil {
fmt.Println("could not start CPU profile: ", err)
os.Exit(1)
}
defer pprof.StopCPUProfile()
}
tstart := time.Now()
if ctx.GlobalBool(CreateFlag.Name) {
input := append(code, common.Hex2Bytes(ctx.GlobalString(InputFlag.Name))...)
@ -125,12 +139,27 @@ func runCmd(ctx *cli.Context) error {
fmt.Println(string(statedb.Dump()))
}
if memProfilePath := ctx.GlobalString(MemProfileFlag.Name); memProfilePath != "" {
f, err := os.Create(memProfilePath)
if err != nil {
fmt.Println("could not create memory profile: ", err)
os.Exit(1)
}
if err := pprof.WriteHeapProfile(f); err != nil {
fmt.Println("could not write memory profile: ", err)
os.Exit(1)
}
f.Close()
}
if ctx.GlobalBool(DebugFlag.Name) {
fmt.Fprintln(os.Stderr, "#### TRACE ####")
vm.WriteTrace(os.Stderr, logger.StructLogs())
fmt.Fprintln(os.Stderr, "#### LOGS ####")
vm.WriteLogs(os.Stderr, statedb.Logs())
}
if ctx.GlobalBool(StatDumpFlag.Name) {
var mem goruntime.MemStats
goruntime.ReadMemStats(&mem)
fmt.Fprintf(os.Stderr, `evm execution time: %v