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体验新版 GitCode,发现更多精彩内容 >>
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2a891803
编写于
11月 13, 2018
作者:
J
Johannes Rieken
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电子邮件补丁
差异文件
stop profiling as soon as extension host is responsive again, #60332
上级
c5718c61
变更
1
显示空白变更内容
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并排
Showing
1 changed file
with
34 addition
and
16 deletion
+34
-16
src/vs/workbench/parts/extensions/electron-browser/extensionsAutoProfiler.ts
...rts/extensions/electron-browser/extensionsAutoProfiler.ts
+34
-16
未找到文件。
src/vs/workbench/parts/extensions/electron-browser/extensionsAutoProfiler.ts
浏览文件 @
2a891803
...
...
@@ -4,15 +4,16 @@
*--------------------------------------------------------------------------------------------*/
import
{
IWorkbenchContribution
}
from
'
vs/workbench/common/contributions
'
;
import
{
IExtensionService
,
IResponsiveStateChangeEvent
,
ICpuProfilerTarget
,
IExtensionHostProfile
}
from
'
vs/workbench/services/extensions/common/extensions
'
;
import
{
IExtensionService
,
IResponsiveStateChangeEvent
,
ICpuProfilerTarget
,
IExtensionHostProfile
,
ProfileSession
}
from
'
vs/workbench/services/extensions/common/extensions
'
;
import
{
ITelemetryService
}
from
'
vs/platform/telemetry/common/telemetry
'
;
import
{
Disposable
}
from
'
vs/base/common/lifecycle
'
;
import
{
timeout
}
from
'
vs/base/common/async
'
;
import
{
ILogService
}
from
'
vs/platform/log/common/log
'
;
import
{
CancellationTokenSource
}
from
'
vs/base/common/cancellation
'
;
import
{
onUnexpectedError
}
from
'
vs/base/common/errors
'
;
export
class
ExtensionsAutoProfiler
extends
Disposable
implements
IWorkbenchContribution
{
private
readonly
_session
=
new
Map
<
ICpuProfilerTarget
,
boolean
>
();
private
readonly
_session
=
new
Map
<
ICpuProfilerTarget
,
CancellationTokenSource
>
();
constructor
(
@
IExtensionService
extensionService
:
IExtensionService
,
...
...
@@ -23,31 +24,48 @@ export class ExtensionsAutoProfiler extends Disposable implements IWorkbenchCont
this
.
_register
(
extensionService
.
onDidChangeResponsiveChange
(
this
.
_onDidChangeResponsiveChange
,
this
));
}
private
_onDidChangeResponsiveChange
(
event
:
IResponsiveStateChangeEvent
):
void
{
private
async
_onDidChangeResponsiveChange
(
event
:
IResponsiveStateChangeEvent
):
Promise
<
void
>
{
const
{
target
}
=
event
;
if
(
!
target
.
canProfileExtensionHost
())
{
return
;
}
if
(
!
this
.
_session
.
has
(
target
))
{
this
.
_session
.
set
(
target
,
true
);
this
.
_profileNSeconds
(
target
).
then
(
profile
=>
{
this
.
_processCpuProfile
(
profile
);
this
.
_session
.
delete
(
target
);
}).
catch
(
_err
=>
{
if
(
event
.
isResponsive
&&
this
.
_session
.
has
(
target
))
{
// stop profiling when responsive again
this
.
_session
.
get
(
target
).
cancel
();
}
else
if
(
!
event
.
isResponsive
&&
!
this
.
_session
.
has
(
target
))
{
// start profiling if not yet profiling
const
token
=
new
CancellationTokenSource
();
this
.
_session
.
set
(
target
,
token
);
let
session
:
ProfileSession
;
try
{
session
=
await
target
.
startExtensionHostProfile
();
}
catch
(
err
)
{
this
.
_session
.
delete
(
target
);
// fail silent as this is often
// caused by another party being
// connected already
});
}
return
;
}
private
_profileNSeconds
(
target
:
ICpuProfilerTarget
,
seconds
:
number
=
5
):
Promise
<
IExtensionHostProfile
>
{
return
target
.
startExtensionHostProfile
().
then
(
session
=>
{
return
timeout
(
seconds
*
1000
).
then
(()
=>
session
.
stop
());
// wait 5 seconds or until responsive again
await
new
Promise
(
resolve
=>
{
token
.
token
.
onCancellationRequested
(
resolve
);
setTimeout
(
resolve
,
5
e3
);
});
try
{
// stop profiling and analyse results
this
.
_processCpuProfile
(
await
session
.
stop
());
}
catch
(
err
)
{
onUnexpectedError
(
err
);
}
finally
{
this
.
_session
.
delete
(
target
);
}
}
}
private
_processCpuProfile
(
profile
:
IExtensionHostProfile
)
{
...
...
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