Hmm, I would like to know the answer as well. As far as I can tell, the problem is given by transforming the String into Text, and this is done by PluggableTextMorph. Does anyone have a clue on how to proceed when we want to display a large amount of text in a Morph? Cheers, Doru On Mon, Jul 23, 2012 at 5:36 AM, Usman Bhatti <usman.bhatti@gmail.com> wrote:

Hello all,

I am working with text presentation in Glamour: the browser is used to show the contents of code files. I noted that the time to display the contents of a file (almost) exponentially grows with the size of the file. So, performing tests on files of three different sizes, I obtain the following response times (using Pharo profiler): 1000 lines 2s 2500 lines 11s 3500 lines 23s.

So thats quite lot for me where I occasionally have files with 2K lines and I may need to browse their contents rapidly.

Running my test script with the profiler in Pharo, I get this tree. I see that the message fromString: method is sent to Text class several times and that takes about 96% of the time (in all test cases). Any hints on how to reduce the number of times the method is invoked by glamour?

tx in advance, Usman

Trace with 3.5K lines:

- 23669 tallies, 23671 msec.

**Tree** -------------------------------- Process: (40s) 516161536: nil -------------------------------- 100.0% {23669ms} GLMTabulator(GLMBrowser)>>openOn:with: 100.0% {23667ms} GLMTabulator(GLMBrowser)>>openWith: 100.0% {23667ms} GLMMorphicRenderer>>open: 91.2% {21577ms} GLMMorphicWindowRenderer class(GLMMorphicWidgetRenderer class)>>render:from: |91.2% {21577ms} GLMMorphicWindowRenderer>>render: | 72.3% {17122ms} GLMSystemWindow(SystemWindow)>>addMorph:fullFrame: | |72.3% {17122ms} PanelMorph>>adoptPaneColor: | | 72.3% {17120ms} PanelMorph(Morph)>>adoptPaneColor: | | 72.3% {17120ms} PanelMorph>>adoptPaneColor: | | 72.3% {17120ms} PanelMorph(Morph)>>color: | | 72.3% {17120ms} PanelMorph(Morph)>>changed | | 72.3% {17120ms} PanelMorph(Morph)>>privateFullBounds | | 72.3% {17120ms} PanelMorph(Morph)>>submorphBounds | | 72.3% {17120ms} LazyTabGroupMorph(Morph)>>fullBounds | | 72.3% {17120ms} LazyTabGroupMorph(Morph)>>doLayoutIn: | | 65.1% {15418ms} TableLayout>>layout:in: | | |65.1% {15418ms} TableLayout>>layoutTopToBottom:in: | | | 65.1% {15418ms} PanelMorph(Morph)>>layoutInBounds: | | | 65.1% {15418ms} PanelMorph(Morph)>>bounds: | | | 65.1% {15418ms} PanelMorph(Morph)>>position: | | | 65.1% {15418ms} PanelMorph(Morph)>>fullBounds | | | 65.1% {15418ms} PanelMorph(Morph)>>doLayoutIn: | | | 65.1% {15418ms} TableLayout>>layout:in: | | | 65.1% {15418ms} TableLayout>>layoutTopToBottom:in: | | | 65.1% {15418ms} GLMPluggableTextMorph(Morph)>>layoutInBounds: | | | 65.1% {15418ms} GLMPluggableTextMorph(Morph)>>bounds: | | | 65.1% {15418ms} GLMPluggableTextMorph(PluggableTextMorph)>>extent: | | | 65.1% {15414ms} GLMTextMorphForEditView(TextMorph)>>extent: | | | 65.1% {15414ms} GLMTextMorphForEditView(TextMorph)>>installEditorToReplace: | | | 65.1% {15414ms} GLMSmalltalkEditor class(TextEditor class)>>forMorph: | | | 65.1% {15414ms} GLMSmalltalkEditor(TextEditor)>>initWithMorph: | | | 65.1% {15414ms} GLMSmalltalkEditor(TextEditor)>>resetState | | | 65.1% {15414ms} GLMSmalltalkEditor(TextEditor)>>paragraph | | | 65.1% {15414ms} GLMTextMorphForEditView(TextMorphForEditView)>>paragraph | | | 65.1% {15414ms} GLMTextMorphForEditView(TextMorph)>>paragraph | | | 65.1% {15414ms} Paragraph>>compose:style:from:in: | | | 65.1% {15414ms} Paragraph>>composeAll | | | 65.1% {15414ms} Paragraph>>multiComposeLinesFrom:to:delta:into:priorLines:atY: | | | 65.1% {15414ms} TextComposer>>multiComposeLinesFrom:to:delta:into:priorLi...extStyle:text:container:wantsColumnBreaks: | | | 65.1% {15414ms} TextComposer>>composeAllLines | | | 65.1% {15414ms} TextComposer>>composeOneLine | | | 65.1% {15398ms} TextComposer>>composeAllRectangles: | | | 65.0% {15386ms} TextComposer>>composeEachRectangleIn: | | | 64.9% {15369ms} MultiCompositionScanner>>composeFrom:inRectangle:firstLine:leftSide:rightSide: | | | 63.9% {15116ms} Text class>>fromString: | | | 63.3% {14992ms} primitives | | 7.2% {1702ms} LazyTabGroupMorph(Morph)>>privateFullBounds | | 7.2% {1702ms} LazyTabGroupMorph(Morph)>>submorphBounds | | 7.2% {1702ms} PanelMorph(Morph)>>fullBounds | | 7.2% {1702ms} PanelMorph(Morph)>>doLayoutIn: | | 7.2% {1702ms} TableLayout>>layout:in: | | 7.2% {1700ms} TableLayout>>layoutTopToBottom:in: | | 7.2% {1700ms} GLMPluggableTextMorph(Morph)>>layoutInBounds: | | 7.2% {1700ms} GLMPluggableTextMorph(Morph)>>bounds: | | 7.2% {1700ms} GLMPluggableTextMorph(PluggableTextMorph)>>extent: | | 7.2% {1696ms} GLMTextMorphForEditView(TextMorph)>>extent: | | 7.2% {1696ms} GLMTextMorphForEditView(TextMorph)>>installEditorToReplace: | | 7.2% {1696ms} GLMSmalltalkEditor class(TextEditor class)>>forMorph: | | 7.2% {1696ms} GLMSmalltalkEditor(TextEditor)>>initWithMorph: | | 7.2% {1696ms} GLMSmalltalkEditor(TextEditor)>>resetState | | 7.2% {1696ms} GLMSmalltalkEditor(TextEditor)>>paragraph | | 7.2% {1696ms} GLMTextMorphForEditView(TextMorphForEditView)>>paragraph | | 7.2% {1696ms} GLMTextMorphForEditView(TextMorph)>>paragraph | | 7.2% {1696ms} Paragraph>>compose:style:from:in: | | 7.2% {1696ms} Paragraph>>composeAll | | 7.2% {1696ms} Paragraph>>multiComposeLinesFrom:to:delta:into:priorLines:atY: | | 7.2% {1696ms} TextComposer>>multiComposeLinesFrom:to:delta:into:priorLi...extStyle:text:container:wantsColumnBreaks: | | 7.2% {1696ms} TextComposer>>composeAllLines | | 7.2% {1696ms} TextComposer>>composeOneLine | | 7.2% {1696ms} TextComposer>>composeAllRectangles: | | 7.2% {1694ms} TextComposer>>composeEachRectangleIn: | | 7.1% {1692ms} MultiCompositionScanner>>composeFrom:inRectangle:firstLine:leftSide:rightSide: | | 6.9% {1629ms} Text class>>fromString: | | 6.8% {1621ms} primitives | 18.8% {4445ms} GLMMorphicWindowRenderer(GLMMorphicWidgetRenderer)>>renderObject: | 18.8% {4445ms} GLMMorphicRenderer(GLMRenderer)>>render: | 18.8% {4445ms} GLMTabulator>>renderGlamorouslyOn: | 18.8% {4445ms} GLMMorphicRenderer>>renderTabulator: | 18.8% {4445ms} GLMMorphicTabulatorRenderer class(GLMMorphicWidgetRenderer class)>>render:from: | 18.8% {4445ms} GLMMorphicTabulatorRenderer>>render: | 18.8% {4445ms} GLMMorphicTabulatorRenderer>>renderCustomRow:ofPane:inUI:inBrowser: | 18.8% {4445ms} GLMMorphicTabulatorRenderer(GLMMorphicWidgetRenderer)>>renderObject: | 18.8% {4445ms} GLMMorphicRenderer(GLMRenderer)>>render: | 18.8% {4445ms} GLMPane>>renderGlamorouslyOn: | 18.8% {4445ms} GLMMorphicRenderer>>renderPane: | 18.8% {4445ms} GLMMorphicPaneRenderer class(GLMMorphicWidgetRenderer class)>>render:from: | 18.8% {4445ms} GLMMorphicPaneRenderer>>render: | 18.8% {4445ms} GLMMorphicPaneRenderer>>renderContainerFor: | 18.8% {4443ms} GLMMorphicPaneRenderer(GLMMorphicWidgetRenderer)>>renderWithTitleOrNil: | 18.8% {4443ms} GLMMorphicPaneRenderer(GLMMorphicWidgetRenderer)>>renderObject: | 18.8% {4443ms} GLMMorphicRenderer(GLMRenderer)>>render: | 18.8% {4443ms} GLMCompositePresentation>>renderGlamorouslyOn: | 18.8% {4443ms} GLMTabbedArrangement>>renderGlamorouslyOn: | 18.8% {4443ms} GLMMorphicRenderer>>renderTabbedCompositePresentation: | 18.8% {4443ms} GLMMorphicTabbedRenderer class(GLMMorphicWidgetRenderer class)>>render:from: | 18.8% {4443ms} GLMMorphicTabbedRenderer>>render: | 18.8% {4443ms} GLMMorphicTabbedRenderer(GLMMorphicWidgetRenderer)>>renderWithTitleOrNil: | 18.8% {4441ms} GLMMorphicTabbedRenderer(GLMMorphicWidgetRenderer)>>renderObject: | 18.8% {4441ms} GLMMorphicRenderer(GLMRenderer)>>render: | 18.8% {4441ms} GLMTextPresentation>>renderGlamorouslyOn: | 18.8% {4441ms} GLMMorphicRenderer>>renderTextPresentation: | 18.8% {4441ms} GLMMorphicTextRenderer class(GLMMorphicWidgetRenderer class)>>render:from: | 18.8% {4441ms} GLMMorphicTextRenderer>>render: | 18.8% {4441ms} GLMMorphicTextRenderer>>textMorphForModel: | 18.8% {4441ms} GLMPluggableTextMorph class(PluggableTextMorph class)>>on:text:accept:readSelection:menu: | 18.7% {4437ms} GLMPluggableTextMorph(PluggableTextMorph)>>on:text:accept:readSelection:menu: | 18.7% {4437ms} GLMPluggableTextMorph(PluggableTextMorph)>>setText: | 18.7% {4437ms} GLMPluggableTextMorph(PluggableTextMorph)>>setTextBasic: | 10.2% {2407ms} GLMTextMorphForEditView(TextMorph)>>contents:wrappedTo: | |10.2% {2407ms} GLMTextMorphForEditView(TextMorph)>>newContents: | | 10.2% {2407ms} GLMTextMorphForEditView(TextMorphForEditView)>>paragraph | | 10.2% {2407ms} GLMTextMorphForEditView(TextMorph)>>paragraph | | 10.2% {2407ms} Paragraph>>compose:style:from:in: | | 10.2% {2407ms} Paragraph>>composeAll | | 10.2% {2407ms} Paragraph>>multiComposeLinesFrom:to:delta:into:priorLines:atY: | | 10.2% {2407ms} TextComposer>>multiComposeLinesFrom:to:delta:into:priorLi...extStyle:text:container:wantsColumnBreaks: | | 10.2% {2407ms} TextComposer>>composeAllLines | | 10.2% {2407ms} TextComposer>>composeOneLine | | 10.2% {2403ms} TextComposer>>composeAllRectangles: | | 10.1% {2401ms} TextComposer>>composeEachRectangleIn: | | 10.1% {2397ms} MultiCompositionScanner>>composeFrom:inRectangle:firstLine:leftSide:rightSide: | | 9.8% {2321ms} Text class>>fromString: | | 9.7% {2299ms} primitives | 8.6% {2030ms} GLMPluggableTextMorph(ScrollPane)>>setScrollDeltas | 8.6% {2028ms} GLMPluggableTextMorph(ScrollPane)>>hideOrShowScrollBars | 8.6% {2028ms} GLMPluggableTextMorph(ScrollPane)>>vHideOrShowScrollBar | 8.6% {2028ms} GLMPluggableTextMorph(ScrollPane)>>vShowScrollBar | 8.6% {2028ms} GLMPluggableTextMorph(PluggableTextMorph)>>resetExtent | 8.6% {2026ms} GLMPluggableTextMorph(PluggableTextMorph)>>extent: | 8.6% {2026ms} GLMTextMorphForEditView(TextMorph)>>extent: | 8.6% {2026ms} GLMTextMorphForEditView(TextMorph)>>installEditorToReplace: | 8.6% {2026ms} GLMSmalltalkEditor class(TextEditor class)>>forMorph: | 8.6% {2026ms} GLMSmalltalkEditor(TextEditor)>>initWithMorph: | 8.6% {2026ms} GLMSmalltalkEditor(TextEditor)>>resetState | 8.6% {2026ms} GLMSmalltalkEditor(TextEditor)>>paragraph | 8.6% {2026ms} GLMTextMorphForEditView(TextMorphForEditView)>>paragraph | 8.6% {2026ms} GLMTextMorphForEditView(TextMorph)>>paragraph | 8.6% {2026ms} Paragraph>>compose:style:from:in: | 8.6% {2026ms} Paragraph>>composeAll | 8.6% {2026ms} Paragraph>>multiComposeLinesFrom:to:delta:into:priorLines:atY: | 8.6% {2026ms} TextComposer>>multiComposeLinesFrom:to:delta:into:priorLi...extStyle:text:container:wantsColumnBreaks: | 8.6% {2026ms} TextComposer>>composeAllLines | 8.6% {2026ms} TextComposer>>composeOneLine | 8.6% {2024ms} TextComposer>>composeAllRectangles: | 8.5% {2020ms} TextComposer>>composeEachRectangleIn: | 8.5% {2016ms} MultiCompositionScanner>>composeFrom:inRectangle:firstLine:leftSide:rightSide: | 8.3% {1956ms} Text class>>fromString: | 8.2% {1950ms} primitives 8.8% {2090ms} GLMSystemWindow(Morph)>>openInWorld 8.8% {2090ms} GLMSystemWindow(SystemWindow)>>openInWorld: 8.8% {2079ms} GLMSystemWindow(Morph)>>bounds: 5.2% {1229ms} GLMSystemWindow(SystemWindow)>>position: |5.2% {1229ms} GLMSystemWindow(Morph)>>position: | 5.2% {1229ms} GLMSystemWindow(Morph)>>fullBounds | 5.2% {1229ms} GLMSystemWindow(Morph)>>doLayoutIn: | 5.2% {1229ms} GLMSystemWindow(Morph)>>privateFullBounds | 5.2% {1229ms} GLMSystemWindow(Morph)>>submorphBounds | 5.2% {1229ms} PanelMorph(Morph)>>fullBounds | 5.2% {1229ms} PanelMorph(Morph)>>doLayoutIn: | 5.2% {1229ms} PanelMorph(Morph)>>privateFullBounds | 5.2% {1229ms} PanelMorph(Morph)>>submorphBounds | 5.2% {1229ms} PanelMorph(Morph)>>fullBounds | 5.2% {1229ms} PanelMorph(Morph)>>doLayoutIn: | 5.2% {1229ms} PanelMorph(Morph)>>privateFullBounds | 5.2% {1229ms} PanelMorph(Morph)>>submorphBounds | 5.2% {1229ms} LazyTabGroupMorph(Morph)>>fullBounds | 5.2% {1229ms} LazyTabGroupMorph(Morph)>>doLayoutIn: | 5.2% {1229ms} LazyTabGroupMorph(Morph)>>privateFullBounds | 5.2% {1229ms} LazyTabGroupMorph(Morph)>>submorphBounds | 5.2% {1229ms} PanelMorph(Morph)>>fullBounds | 5.2% {1229ms} PanelMorph(Morph)>>doLayoutIn: | 5.2% {1229ms} TableLayout>>layout:in: | 5.2% {1227ms} TableLayout>>layoutTopToBottom:in: | 5.2% {1227ms} GLMPluggableTextMorph(Morph)>>layoutInBounds: | 5.2% {1227ms} GLMPluggableTextMorph(Morph)>>bounds: | 5.2% {1227ms} GLMPluggableTextMorph(PluggableTextMorph)>>extent: | 5.2% {1225ms} GLMTextMorphForEditView(TextMorph)>>extent: | 5.2% {1225ms} GLMTextMorphForEditView(TextMorph)>>installEditorToReplace: | 5.2% {1225ms} GLMSmalltalkEditor class(TextEditor class)>>forMorph: | 5.2% {1225ms} GLMSmalltalkEditor(TextEditor)>>initWithMorph: | 5.2% {1225ms} GLMSmalltalkEditor(TextEditor)>>resetState | 5.2% {1225ms} GLMSmalltalkEditor(TextEditor)>>paragraph | 5.2% {1225ms} GLMTextMorphForEditView(TextMorphForEditView)>>paragraph | 5.2% {1225ms} GLMTextMorphForEditView(TextMorph)>>paragraph | 5.2% {1225ms} Paragraph>>compose:style:from:in: | 5.2% {1225ms} Paragraph>>composeAll | 5.2% {1225ms} Paragraph>>multiComposeLinesFrom:to:delta:into:priorLines:atY: | 5.2% {1225ms} TextComposer>>multiComposeLinesFrom:to:delta:into:priorLi...extStyle:text:container:wantsColumnBreaks: | 5.2% {1225ms} TextComposer>>composeAllLines | 5.2% {1225ms} TextComposer>>composeOneLine | 5.2% {1225ms} TextComposer>>composeAllRectangles: | 5.2% {1225ms} TextComposer>>composeEachRectangleIn: | 5.2% {1225ms} MultiCompositionScanner>>composeFrom:inRectangle:firstLine:leftSide:rightSide: | 5.0% {1187ms} Text class>>fromString: | 5.0% {1177ms} primitives 3.6% {850ms} GLMSystemWindow>>extent: 3.6% {850ms} GLMSystemWindow(Morph)>>fullBounds 3.6% {850ms} GLMSystemWindow(Morph)>>doLayoutIn: 3.6% {850ms} GLMSystemWindow(Morph)>>privateFullBounds 3.6% {850ms} GLMSystemWindow(Morph)>>submorphBounds 3.6% {850ms} PanelMorph(Morph)>>fullBounds 3.6% {850ms} PanelMorph(Morph)>>doLayoutIn: 3.6% {850ms} PanelMorph(Morph)>>privateFullBounds 3.6% {850ms} PanelMorph(Morph)>>submorphBounds 3.6% {850ms} PanelMorph(Morph)>>fullBounds 3.6% {850ms} PanelMorph(Morph)>>doLayoutIn: 3.6% {850ms} PanelMorph(Morph)>>privateFullBounds 3.6% {850ms} PanelMorph(Morph)>>submorphBounds 3.6% {850ms} LazyTabGroupMorph(Morph)>>fullBounds 3.6% {850ms} LazyTabGroupMorph(Morph)>>doLayoutIn: 3.6% {850ms} LazyTabGroupMorph(Morph)>>privateFullBounds 3.6% {850ms} LazyTabGroupMorph(Morph)>>submorphBounds 3.6% {850ms} PanelMorph(Morph)>>fullBounds 3.6% {850ms} PanelMorph(Morph)>>doLayoutIn: 3.6% {850ms} TableLayout>>layout:in: 3.6% {850ms} TableLayout>>layoutTopToBottom:in: 3.6% {848ms} GLMPluggableTextMorph(Morph)>>layoutInBounds: 3.6% {848ms} GLMPluggableTextMorph(Morph)>>bounds: 3.6% {848ms} GLMPluggableTextMorph(PluggableTextMorph)>>extent: 3.6% {848ms} GLMTextMorphForEditView(TextMorph)>>extent: 3.6% {848ms} GLMTextMorphForEditView(TextMorph)>>installEditorToReplace: 3.6% {848ms} GLMSmalltalkEditor class(TextEditor class)>>forMorph: 3.6% {848ms} GLMSmalltalkEditor(TextEditor)>>initWithMorph: 3.6% {848ms} GLMSmalltalkEditor(TextEditor)>>resetState 3.6% {848ms} GLMSmalltalkEditor(TextEditor)>>paragraph 3.6% {848ms} GLMTextMorphForEditView(TextMorphForEditView)>>paragraph

3.6% {848ms} GLMTextMorphForEditView(TextMorph)>>paragraph

3.6% {848ms} Paragraph>>compose:style:from:in:

3.6% {848ms} Paragraph>>composeAll

3.6% {848ms} Paragraph>>multiComposeLinesFrom:to:delta:into:priorLines:atY:

3.6% {848ms} TextComposer>>multiComposeLinesFrom:to:delta:into:priorLi...extStyle:text:container:wantsColumnBreaks:

3.6% {848ms} TextComposer>>composeAllLines

3.6% {846ms} TextComposer>>composeOneLine

3.6% {846ms} TextComposer>>composeAllRectangles:

3.6% {844ms} TextComposer>>composeEachRectangleIn:

3.6% {844ms} MultiCompositionScanner>>composeFrom:inRectangle:firstLine:leftSide:rightSide:

3.4% {807ms} Text class>>fromString:

3.4% {802ms} primitives **Leaves** 96.5% {22842ms} Text class>>fromString:

**Memory** old -4,940,088 bytes young +69,144 bytes used -4,870,944 bytes free -1,051,976 bytes

**GCs** full 3 totalling 1,428ms (6.0% uptime), avg 476.0ms incr 16030 totalling 15,162ms (64.0% uptime), avg 1.0ms tenures 42 (avg 381 GCs/tenure) root table 0 overflows

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