diff --git a/README.md b/README.md index c1beddb..7b9d2fd 100644 --- a/README.md +++ b/README.md @@ -119,6 +119,7 @@ Once a profile has loaded, the main view is split into two: the top area is the * `n`: Go to next profile/thread if one is available * `p`: Go to previous profile/thread if one is available * `t`: Open the profile/thread selector if available +* `c`: Slice the profile by the current selecting in "Time Order" view * `Cmd+F`/`Ctrl+F`: to open search. While open, `Enter` and `Shift+Enter` cycle through results ## Contributing diff --git a/src/lib/profile.ts b/src/lib/profile.ts index f900bc0..feaa0fc 100644 --- a/src/lib/profile.ts +++ b/src/lib/profile.ts @@ -328,6 +328,33 @@ export class Profile { return flattenedProfile } + getProfileSlice(start: number, end: number): Profile { + const builder = new CallTreeProfileBuilder() + + let lastValue = 0 + + function openFrame(node: CallTreeNode, value: number) { + builder.enterFrame( + node.frame, + (lastValue = value >= end || value < start ? lastValue : value - start), + ) + } + function closeFrame(node: CallTreeNode, value: number) { + builder.leaveFrame( + node.frame, + (lastValue = value >= end || value < start ? lastValue : value - start), + ) + } + + this.forEachCall(openFrame, closeFrame) + + const slice = builder.build() + slice.name = this.name + slice.valueFormatter = this.valueFormatter + + return slice + } + getInvertedProfileForCallersOf(focalFrameInfo: FrameInfo): Profile { const focalFrame = Frame.getOrInsert(this.frames, focalFrameInfo) const builder = new StackListProfileBuilder() diff --git a/src/views/application.tsx b/src/views/application.tsx index bc1f806..8946e15 100644 --- a/src/views/application.tsx +++ b/src/views/application.tsx @@ -349,6 +349,17 @@ export class Application extends StatelessComponent { if (activeProfileState) { this.props.setProfileIndexToView(activeProfileState.index - 1) } + } else if (ev.key === 'c') { + const {activeProfileState, profileGroup, setProfileGroup} = this.props + if (activeProfileState && profileGroup) { + const start = activeProfileState.chronoViewState.configSpaceViewportRect.origin.x + const end = start + activeProfileState.chronoViewState.configSpaceViewportRect.size.x + setProfileGroup({ + name: profileGroup.name, + indexToView: 0, + profiles: [activeProfileState.profile.getProfileSlice(start, end)], + }) + } } }