add scenarios for the heap target, and add live bytes to the plots

mknyszek · Feb 16, 2021 · 3eb2a6c · 3eb2a6c
1 parent 06535e4
commit 3eb2a6c
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Showing 8 changed files with 1,577 additions and 301 deletions.
diff --git a/data/scenarios/heavy-step-alloc-high-heap-target.json b/data/scenarios/heavy-step-alloc-high-heap-target.json
diff --git a/data/scenarios/high-GOGC.json b/data/scenarios/high-GOGC.json
diff --git a/data/scenarios/high-heap-target.json b/data/scenarios/high-heap-target.json
diff --git a/data/scenarios/jitter-alloc.json b/data/scenarios/jitter-alloc.json
diff --git a/data/scenarios/low-heap-target.json b/data/scenarios/low-heap-target.json
diff --git a/data/scenarios/step-heap-target.json b/data/scenarios/step-heap-target.json
diff --git a/scenario/generators.go b/scenario/generators.go
@@ -215,6 +215,54 @@ var generators = map[string]func() exec{
 			length:          50,
 		}
 	},
+	"low-heap-target": func() exec {
+		return exec{
+			globals: Globals{
+				Gamma:        2,
+				GlobalsBytes: 32 << 10,
+				InitialHeap:  2 << 20,
+			},
+			allocRate:       random(0.1).offset(4),
+			scanRate:        constant(31.0),
+			growthRate:      constant(1.5).mix(ramp(-0.5, 4), random(0.01), unit(3).delay(25)),
+			scannableFrac:   constant(1.0),
+			stackBytes:      constant(8192),
+			heapTargetBytes: constant(64 << 20),
+			length:          50,
+		}
+	},
+	"step-heap-target": func() exec {
+		return exec{
+			globals: Globals{
+				Gamma:        2,
+				GlobalsBytes: 32 << 10,
+				InitialHeap:  2 << 20,
+			},
+			allocRate:       random(0.1).offset(4),
+			scanRate:        constant(31.0),
+			growthRate:      constant(2.0).mix(ramp(-1.0, 8), random(0.01)),
+			scannableFrac:   constant(1.0),
+			stackBytes:      constant(8192),
+			heapTargetBytes: constant(-1).mix(constant((256 << 20) + 1).delay(25)),
+			length:          50,
+		}
+	},
+	"heavy-step-alloc-high-heap-target": func() exec {
+		return exec{
+			globals: Globals{
+				Gamma:        2,
+				GlobalsBytes: 32 << 10,
+				InitialHeap:  2 << 20,
+			},
+			allocRate:       constant(1.0).mix(ramp(10.0, 1).delay(25)),
+			scanRate:        constant(31.0),
+			growthRate:      constant(2.0).mix(ramp(-1.0, 8), random(0.01)),
+			scannableFrac:   constant(1.0),
+			stackBytes:      constant(8192),
+			heapTargetBytes: constant(2 << 30),
+			length:          50,
+		}
+	},
 }
 
 type stream func() float64

diff --git a/tools/gen-plots.py b/tools/gen-plots.py
@@ -36,7 +36,8 @@ def bytesPlot(axs):
     triggerPlot, = axs.plot(t, data['Trigger'] / float(1<<20), label='GC trigger')
     peakPlot, = axs.plot(t, data['Peak'] / float(1<<20), label='Peak heap')
     stackPlot, = axs.plot(t, data['Stack_Bytes'] / float(1<<20), label='Stack')
-    doLegend(axs, handles=[goalPlot, triggerPlot, peakPlot, stackPlot])
+    livePlot, = axs.plot(t, data['Live_Bytes'] / float(1<<20), label='Live')
+    doLegend(axs, handles=[goalPlot, triggerPlot, peakPlot, stackPlot, livePlot])
     axs.set_ylabel('MiB')
     axs.set_xlim(t[0], t[-1])
     axs.grid(True)