diff --git a/consts.go b/consts.go
index 8648bf6..857f8a2 100644
--- a/consts.go
+++ b/consts.go
@@ -48,13 +48,12 @@ const (
 	defaultThreadCoolDown    = time.Hour
 	defaultGoroutineCoolDown = time.Minute * 10
 
-	defaultInterval        = 5 * time.Second
-	defaultDumpProfileType = binaryDump
-	defaultDumpPath        = "/tmp"
-	defaultLoggerName      = "holmes.log"
-	defaultLoggerFlags     = os.O_RDWR | os.O_CREATE | os.O_APPEND
-	defaultLoggerPerm      = 0644
-	defaultShardLoggerSize = 5242880 // 5m
+	defaultInterval          = 5 * time.Second
+	defaultDumpProfileType   = binaryDump
+	defaultDumpPath          = "/tmp"
+	defaultDumpFileExtension = ".log"
+	defaultLoggerFlags       = os.O_RDWR | os.O_CREATE | os.O_APPEND
+	defaultLoggerPerm        = 0644
 )
 
 type dumpProfileType int
diff --git a/doc/zh.md b/doc/zh.md
index e8852da..7ed2a10 100644
--- a/doc/zh.md
+++ b/doc/zh.md
@@ -82,6 +82,7 @@ h, _ := holmes.New(
     holmes.WithCollectInterval("5s"),
     holmes.WithDumpPath("/tmp"),
     holmes.WithTextDump(),
+    holmes.WithDumpFileExtension(".out"),
     holmes.WithDumpToLogger(true),
     holmes.WithGoroutineDump(10, 25, 2000, 10*1000, time.Minute),
 )
@@ -97,6 +98,7 @@ h.Stop()
 * WithCollectInterval("5s") 每5s采集一次当前应用的各项指标，该值建议设置为大于1s。
 * WithDumpPath("/tmp") profile文件保存路径。
 * WithTextDump() 以文本格式保存profile内容。
+* WithDumpFileExtension() 设置保存的profile文件的扩展名，默认是`.log`。
 * WithDumpToLogger() profile内容将会输出到日志。
 * WithGoroutineDump(10, 25, 2000, 100*1000, time.Minute) 当goroutine指标满足以下条件时，将会触发dump操作。
   current_goroutine_num > `10` && current_goroutine_num < `100*1000` && 
diff --git a/go.mod b/go.mod
index d4ff3c8..10df57d 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,9 @@ go 1.14
 
 require (
 	github.com/gin-gonic/gin v1.7.7
-	github.com/shirou/gopsutil v3.20.11+incompatible
+	github.com/shirou/gopsutil v3.21.11+incompatible
 	github.com/stretchr/testify v1.7.0
+	github.com/tklauser/go-sysconf v0.3.11 // indirect
+	github.com/yusufpapurcu/wmi v1.2.2 // indirect
 	mosn.io/pkg v0.0.0-20211217101631-d914102d1baf
 )
diff --git a/go.sum b/go.sum
index e454dc6..7323bd1 100644
--- a/go.sum
+++ b/go.sum
@@ -18,7 +18,6 @@ github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d h1:G0m3OIz70MZUWq3EgK3CesDbo8upS2Vm9/P3FtgI+Jk=
 github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
 github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
@@ -118,8 +117,9 @@ github.com/go-kit/kit v0.10.0/go.mod h1:xUsJbQ/Fp4kEt7AFgCuvyX4a71u8h9jB8tj/ORgO
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
-github.com/go-ole/go-ole v1.2.4 h1:nNBDSCOigTSiarFpYE9J/KtEA1IOW4CNeqT9TQDqCxI=
 github.com/go-ole/go-ole v1.2.4/go.mod h1:XCwSNxSkXRo4vlyPy93sltvi/qJq0jqQhjqQNIwKuxM=
+github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
+github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
 github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
 github.com/go-playground/locales v0.13.0 h1:HyWk6mgj5qFqCT5fjGBuRArbVDfE4hi8+e8ceBS/t7Q=
@@ -410,8 +410,9 @@ github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f/go.mod h1:sm1tb
 github.com/samuel/go-zookeeper v0.0.0-20190923202752-2cc03de413da/go.mod h1:gi+0XIa01GRL2eRQVjQkKGqKF3SF9vZR/HnPullcV2E=
 github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=
 github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg65j358z/aeFdxmN0P9QXhEzd20vsDc=
-github.com/shirou/gopsutil v3.20.11+incompatible h1:LJr4ZQK4mPpIV5gOa4jCOKOGb4ty4DZO54I4FGqIpto=
 github.com/shirou/gopsutil v3.20.11+incompatible/go.mod h1:5b4v6he4MtMOwMlS0TUMTu2PcXUg8+E1lC7eC3UO/RA=
+github.com/shirou/gopsutil v3.21.11+incompatible h1:+1+c1VGhc88SSonWP6foOcLhvnKlUeu/erjjvaPEYiI=
+github.com/shirou/gopsutil v3.21.11+incompatible/go.mod h1:5b4v6he4MtMOwMlS0TUMTu2PcXUg8+E1lC7eC3UO/RA=
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
@@ -446,6 +447,10 @@ github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5Cc
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/subosito/gotenv v1.2.0/go.mod h1:N0PQaV/YGNqwC0u51sEeR/aUtSLEXKX9iv69rRypqCw=
 github.com/tebeka/strftime v0.1.3/go.mod h1:7wJm3dZlpr4l/oVK0t1HYIc4rMzQ2XJlOMIUJUJH6XQ=
+github.com/tklauser/go-sysconf v0.3.11 h1:89WgdJhk5SNwJfu+GKyYveZ4IaJ7xAkecBo+KdJV0CM=
+github.com/tklauser/go-sysconf v0.3.11/go.mod h1:GqXfhXY3kiPa0nAXPDIQIWzJbMCB7AmcWpGR8lSZfqI=
+github.com/tklauser/numcpus v0.6.0 h1:kebhY2Qt+3U6RNK7UqpYNA+tJ23IBEGKkB7JQBfDYms=
+github.com/tklauser/numcpus v0.6.0/go.mod h1:FEZLMke0lhOUG6w2JadTzp0a+Nl8PF/GFkQ5UVIcaL4=
 github.com/tmc/grpc-websocket-proxy v0.0.0-20170815181823-89b8d40f7ca8/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/tmc/grpc-websocket-proxy v0.0.0-20200427203606-3cfed13b9966/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
@@ -463,6 +468,8 @@ github.com/valyala/tcplisten v0.0.0-20161114210144-ceec8f93295a/go.mod h1:v3UYOV
 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yusufpapurcu/wmi v1.2.2 h1:KBNDSne4vP5mbSWnJbO+51IMOXJB67QiYCSBrubbPRg=
+github.com/yusufpapurcu/wmi v1.2.2/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.5/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
@@ -586,6 +593,7 @@ golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191001151750-bb3f8db39f24/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191220142924-d4481acd189f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -604,8 +612,9 @@ golang.org/x/sys v0.0.0-20201009025420-dfb3f7c4e634/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201214210602-f9fddec55a1e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201223074533-0d417f636930/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e h1:WUoyKPm6nCo1BnNUvPGnFG3T5DUVem42yDJZZ4CNxMA=
 golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.2.0 h1:ljd4t30dBnAvMZaQCevtY0xLLD0A+bRZXbgLMLU1F/A=
+golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
diff --git a/holmes.go b/holmes.go
index 2e7d635..b0e67d0 100644
--- a/holmes.go
+++ b/holmes.go
@@ -598,7 +598,7 @@ func (h *Holmes) cpuProfile(curCPUUsage int, c typeOption) bool {
 		c.TriggerMin, c.TriggerDiff, c.TriggerAbs, NotSupportTypeMaxConfig,
 		h.cpuStats.sequentialData(), curCPUUsage)
 
-	bf, binFileName, err := getBinaryFileNameAndCreate(h.opts.DumpPath, cpu, "")
+	bf, binFileName, err := getBinaryFileNameAndCreate(h.opts.DumpPath, h.opts.DumpFileExtension, cpu, "")
 	if err != nil {
 		h.Errorf("[Holmes] failed to create cpu profile file: %v", err.Error())
 		return false
diff --git a/options.go b/options.go
index b56b63b..d2e6e54 100644
--- a/options.go
+++ b/options.go
@@ -89,6 +89,8 @@ type DumpOptions struct {
 	DumpFullStack bool
 	// dump profile to logger. It will make huge log output if enable DumpToLogger option. issues/90
 	DumpToLogger bool
+	// set the dump file extension, default is .log
+	DumpFileExtension string
 }
 
 // ShrinkThrOptions contains the configuration about shrink thread
@@ -174,9 +176,10 @@ func newOptions() *options {
 		CollectInterval:   defaultInterval,
 		intervalResetting: make(chan struct{}, 1),
 		DumpOptions: &DumpOptions{
-			DumpPath:        defaultDumpPath,
-			DumpProfileType: defaultDumpProfileType,
-			DumpFullStack:   false,
+			DumpPath:          defaultDumpPath,
+			DumpProfileType:   defaultDumpProfileType,
+			DumpFullStack:     false,
+			DumpFileExtension: defaultDumpFileExtension,
 		},
 		ShrinkThrOptions: &ShrinkThrOptions{
 			Enable: false,
@@ -204,6 +207,14 @@ func WithDumpPath(dumpPath string) Option {
 	})
 }
 
+// WithDumpFileExtension set the dump file extension for holmes.
+func WithDumpFileExtension(extension string) Option {
+	return optionFunc(func(opts *options) (err error) {
+		opts.DumpFileExtension = extension
+		return
+	})
+}
+
 // WithCollectInterval : interval must be valid time duration string,
 // eg. "ns", "us" (or "µs"), "ms", "s", "m", "h".
 func WithCollectInterval(interval string) Option {
@@ -320,8 +331,8 @@ func (base *typeOption) Set(min, abs, diff int, coolDown time.Duration) {
 
 // newMemOptions
 // enable the heap dumper, should dump if one of the following requirements is matched
-//   1. memory usage > TriggerMin && memory usage diff > TriggerDiff
-//   2. memory usage > TriggerAbs.
+//  1. memory usage > TriggerMin && memory usage diff > TriggerDiff
+//  2. memory usage > TriggerAbs.
 func newMemOptions() *typeOption {
 	return newTypeOpts(
 		defaultMemTriggerMin,
@@ -341,8 +352,9 @@ func WithMemDump(min int, diff int, abs int, coolDown time.Duration) Option {
 
 // newGCHeapOptions
 // enable the heap dumper, should dump if one of the following requirements is matched
-//   1. GC heap usage > TriggerMin && GC heap usage diff > TriggerDiff
-//   2. GC heap usage > TriggerAbs
+//  1. GC heap usage > TriggerMin && GC heap usage diff > TriggerDiff
+//  2. GC heap usage > TriggerAbs
+//
 // in percent.
 func newGCHeapOptions() *typeOption {
 	return newTypeOpts(
@@ -398,8 +410,9 @@ func WithThreadDump(min, diff, abs int, coolDown time.Duration) Option {
 // newCPUOptions
 // enable the cpu dumper, should dump if one of the following requirements is matched
 // in percent
-//   1. cpu usage > CPUTriggerMin && cpu usage diff > CPUTriggerDiff
-//   2. cpu usage > CPUTriggerAbs
+//  1. cpu usage > CPUTriggerMin && cpu usage diff > CPUTriggerDiff
+//  2. cpu usage > CPUTriggerAbs
+//
 // in percent.
 func newCPUOptions() *typeOption {
 	return newTypeOpts(
diff --git a/readme.md b/readme.md
index 1f12a5c..60d4217 100644
--- a/readme.md
+++ b/readme.md
@@ -53,6 +53,7 @@ h, _ := holmes.New(
     holmes.WithCollectInterval("5s"),
     holmes.WithDumpPath("/tmp"),
     holmes.WithTextDump(),
+    holmes.WithDumpFileExtension(".out"),
     holmes.WithDumpToLogger(true),
     holmes.WithGoroutineDump(10, 25, 2000, 10*1000,time.Minute),
 )
@@ -68,6 +69,7 @@ h.Stop()
 * WithCollectInterval("5s") means the system metrics are collected once 5 seconds
 * WithDumpPath("/tmp") means the dump binary file(binary mode)  will write content to `/tmp` dir.
 * WithTextDump() means not in binary mode, so it's text mode profiles
+* WithDumpFileExtension() set the extension of the dump profile,default is `.log`
 * WithDumpToLogger() means profiles information will be outputted to logger.  
 * WithGoroutineDump(10, 25, 2000, 100*1000,time.Minute) means dump will happen when current_goroutine_num > 10 && 
   current_goroutine_num < `100*1000` && current_goroutine_num > `125%` * previous_average_goroutine_num or current_goroutine_num > `2000`,
diff --git a/util.go b/util.go
index 4ad8bb4..3b466bd 100644
--- a/util.go
+++ b/util.go
@@ -194,8 +194,8 @@ func matchRule(history ring, curVal, ruleMin, ruleAbs, ruleDiff, ruleMax int) (b
 	return false, ReasonCurlGreaterMin
 }
 
-func getBinaryFileName(filePath string, dumpType configureType, eventID string) string {
-	suffix := time.Now().Format("20060102150405.000") + ".log"
+func getBinaryFileName(filePath, fileExtension string, dumpType configureType, eventID string) string {
+	suffix := time.Now().Format("20060102150405.000") + fileExtension
 	if len(eventID) == 0 {
 		return path.Join(filePath, check2name[dumpType]+"."+suffix)
 	}
@@ -204,8 +204,8 @@ func getBinaryFileName(filePath string, dumpType configureType, eventID string)
 }
 
 // fix #89
-func getBinaryFileNameAndCreate(dump string, dumpType configureType, eventID string) (*os.File, string, error) {
-	filepath := getBinaryFileName(dump, dumpType, eventID)
+func getBinaryFileNameAndCreate(dump, extension string, dumpType configureType, eventID string) (*os.File, string, error) {
+	filepath := getBinaryFileName(dump, extension, dumpType, eventID)
 	f, err := os.OpenFile(filepath, defaultLoggerFlags, defaultLoggerPerm)
 	if err != nil && os.IsNotExist(err) {
 		if err = os.MkdirAll(dump, 0o755); err != nil {
@@ -234,7 +234,7 @@ func writeFile(data bytes.Buffer, dumpType configureType, dumpOpts *DumpOptions,
 		buf = data.Bytes()
 	}
 
-	file, fileName, err := getBinaryFileNameAndCreate(dumpOpts.DumpPath, dumpType, eventID)
+	file, fileName, err := getBinaryFileNameAndCreate(dumpOpts.DumpPath, dumpOpts.DumpFileExtension, dumpType, eventID)
 	if err != nil {
 		return fileName, fmt.Errorf("pprof %v open file failed : %w", type2name[dumpType], err)
 	}