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authorChristian Krinitsin <mail@krinitsin.com>2025-07-03 16:27:09 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-07-03 16:27:09 +0000
commit4d9e26c0333abd39bdbd039dcdb30ed429c475ba (patch)
tree4010d5fb3e8bc48c110a2c1ff2a16b8648cb86bb /results/classifier/accel-gemma3:12b/kvm/1090726
parent5541099586dbd6018574cb44e1934907c121526f (diff)
downloademulator-bug-study-4d9e26c0333abd39bdbd039dcdb30ed429c475ba.tar.gz
emulator-bug-study-4d9e26c0333abd39bdbd039dcdb30ed429c475ba.zip
add gemma accelerator classification results
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+
+qemu does not generate guest cpu topology properly
+
+Adding the option
+
+-smp 12,sockets=2,cores=6,threads=1
+
+exposes
+
+
+Machine (12GB)
+  Socket #0
+        L2 L#0 (512KB) + L1 L#0 (64KB) + Core L#0 + PU L#0 (P#0)
+        L2 L#1 (512KB) + L1 L#1 (64KB) + Core L#1 + PU L#1 (P#1)
+        L2 L#2 (512KB) + L1 L#2 (64KB) + Core L#2 + PU L#2 (P#2)
+        L2 L#3 (512KB) + L1 L#3 (64KB) + Core L#3 + PU L#3 (P#3)
+        L2 L#4 (512KB) + L1 L#4 (64KB) + Core L#4 + PU L#4 (P#4)
+        L2 L#5 (512KB) + L1 L#5 (64KB) + Core L#5 + PU L#5 (P#5)
+        L2 L#6 (512KB) + L1 L#6 (64KB) + Core L#6 + PU L#6 (P#6)
+        L2 L#7 (512KB) + L1 L#7 (64KB) + Core L#7 + PU L#7 (P#7)
+  Socket #1
+      L2 L#8 (512KB) + L1 L#8 (64KB) + Core L#8 + PU L#8 (P#8)
+      L2 L#9 (512KB) + L1 L#9 (64KB) + Core L#9 + PU L#9 (P#9)
+      L2 L#10 (512KB) + L1 L#10 (64KB) + Core L#10 + PU L#10 (P#10)
+      L2 L#11 (512KB) + L1 L#11 (64KB) + Core L#11 + PU L#11 (P#11)
+
+
+Rather than:
+
+Machine (12GB)
+  Socket #0
+        L2 L#0 (512KB) + L1 L#0 (64KB) + Core L#0 + PU L#0 (P#0)
+        L2 L#1 (512KB) + L1 L#1 (64KB) + Core L#1 + PU L#1 (P#1)
+        L2 L#2 (512KB) + L1 L#2 (64KB) + Core L#2 + PU L#2 (P#2)
+        L2 L#3 (512KB) + L1 L#3 (64KB) + Core L#3 + PU L#3 (P#3)
+        L2 L#4 (512KB) + L1 L#4 (64KB) + Core L#4 + PU L#4 (P#4)
+        L2 L#5 (512KB) + L1 L#5 (64KB) + Core L#5 + PU L#5 (P#5)
+  Socket #1
+        L2 L#6 (512KB) + L1 L#6 (64KB) + Core L#6 + PU L#6 (P#6)
+        L2 L#7 (512KB) + L1 L#7 (64KB) + Core L#7 + PU L#7 (P#7)
+        L2 L#8 (512KB) + L1 L#8 (64KB) + Core L#8 + PU L#8 (P#8)
+        L2 L#9 (512KB) + L1 L#9 (64KB) + Core L#9 + PU L#9 (P#9)
+        L2 L#10 (512KB) + L1 L#10 (64KB) + Core L#10 + PU L#10 (P#10)
+        L2 L#11 (512KB) + L1 L#11 (64KB) + Core L#11 + PU L#11 (P#11)
+
+
+Here is a cpuid dump from inside the guest and dump from more recent version of cpuid, in which you can see a bit more detail. The later contains data for a single CPU, because the others are the same.
+
+Reproducible on qemu 1.0 and 1.2. with guest os Fedora 17, Debian 6, Debian Squeeze and Windows 2008 R2.
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