[llvm] [llvm-profgen][SPGO] Support profiles with multiple concurrent processes (PR #169353)
via llvm-commits
llvm-commits at lists.llvm.org
Mon Nov 24 08:16:18 PST 2025
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-pgo
Author: circuit10 (Heath123)
<details>
<summary>Changes</summary>
Fixes https://github.com/llvm/llvm-project/issues/164581.
This PR adds support for interpreting perf profiles containing multiple processes running concurrently. Previously, profiling multiple processes worked only if a single instance was running at any given time, since the base address of the binary would be overwritten; see the linked issue for more detail. This is addressed by using a map which stores the base address for each binary's PID.
Since including the PID of the relevant process in perf samples changes the output format, the feature has been gated behind a flag, to prevent breaking existing perf script files.
To compliment the support for multiple processes, the PID filter may now also take multiple processes.
---
Patch is 47.36 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/169353.diff
13 Files Affected:
- (added) llvm/test/tools/llvm-profgen/Inputs/multi-process-cs-probe.perfbin ()
- (added) llvm/test/tools/llvm-profgen/Inputs/multi-process-cs-probe.perfscript (+30)
- (added) llvm/test/tools/llvm-profgen/Inputs/multi-process-nocs-noprobe.perfbin ()
- (added) llvm/test/tools/llvm-profgen/Inputs/multi-process-nocs-noprobe.perfscript (+12)
- (added) llvm/test/tools/llvm-profgen/Inputs/multi-process-warning.perfscript (+12)
- (added) llvm/test/tools/llvm-profgen/multi-pid-filter.test (+39)
- (added) llvm/test/tools/llvm-profgen/multi-process-cs-probe.test (+46)
- (added) llvm/test/tools/llvm-profgen/multi-process-nocs-noprobe.test (+40)
- (added) llvm/test/tools/llvm-profgen/multi-process-warning.test (+10)
- (modified) llvm/tools/llvm-profgen/PerfReader.cpp (+137-35)
- (modified) llvm/tools/llvm-profgen/PerfReader.h (+15-18)
- (modified) llvm/tools/llvm-profgen/ProfiledBinary.h (+23-5)
- (modified) llvm/tools/llvm-profgen/llvm-profgen.cpp (+10-7)
``````````diff
diff --git a/llvm/test/tools/llvm-profgen/Inputs/multi-process-cs-probe.perfbin b/llvm/test/tools/llvm-profgen/Inputs/multi-process-cs-probe.perfbin
new file mode 100755
index 0000000000000..6e98e86d236a4
Binary files /dev/null and b/llvm/test/tools/llvm-profgen/Inputs/multi-process-cs-probe.perfbin differ
diff --git a/llvm/test/tools/llvm-profgen/Inputs/multi-process-cs-probe.perfscript b/llvm/test/tools/llvm-profgen/Inputs/multi-process-cs-probe.perfscript
new file mode 100644
index 0000000000000..1e23ed3f81fde
--- /dev/null
+++ b/llvm/test/tools/llvm-profgen/Inputs/multi-process-cs-probe.perfscript
@@ -0,0 +1,30 @@
+; Load first process
+ 262511 PERF_RECORD_MMAP2 262511/262511: [0x61f3acfa8000(0x1000) @ 0x1000 103:02 13931513 3957944494]: r-xp /home/multi-process-cs-probe.perfbin
+
+; Samples from first process
+ 262511
+ 61f3acfa8155
+ 61f3acfa81e9
+ 78d7ee62a1ca
+ 78d7ee62a28b
+ 61f3acfa8065
+ 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/-
+
+; Load second process
+ 262512 PERF_RECORD_MMAP2 262512/262512: [0x5b3c4c631000(0x1000) @ 0x1000 103:02 13931513 3957944494]: r-xp /home/multi-process-cs-probe.perfbin
+
+; Samples from both processes
+ 262512
+ 5b3c4c631195
+ 5b3c4c63120c
+ 73bf70e2a1ca
+ 73bf70e2a28b
+ 5b3c4c631065
+ 0x5b3c4c631190/0x5b3c4c631195/P/-/-/1/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/1/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/1/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/5/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/1/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/1/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/1/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/4/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/1/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/1/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/1/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/5/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/1/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/1/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/1/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/1/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/5/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/1/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/1/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/1/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/5/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/1/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/1/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/1/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/5/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/1/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/1/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/1/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/5/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/1/UNCOND/- 0x5b3c4c631190/0x5b3c4c631195/P/-/-/1/UNCOND/- 0x5b3c4c6311a1/0x5b3c4c63117c/P/-/-/1/UNCOND/-
+ 262511
+ 61f3acfa813c
+ 61f3acfa81e9
+ 78d7ee62a1ca
+ 78d7ee62a28b
+ 61f3acfa8065
+ 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/4/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/- 0x61f3acfa8161/0x61f3acfa813c/P/-/-/1/UNCOND/- 0x61f3acfa8150/0x61f3acfa8155/P/-/-/1/UNCOND/-
diff --git a/llvm/test/tools/llvm-profgen/Inputs/multi-process-nocs-noprobe.perfbin b/llvm/test/tools/llvm-profgen/Inputs/multi-process-nocs-noprobe.perfbin
new file mode 100755
index 0000000000000..b7859ec8d6794
Binary files /dev/null and b/llvm/test/tools/llvm-profgen/Inputs/multi-process-nocs-noprobe.perfbin differ
diff --git a/llvm/test/tools/llvm-profgen/Inputs/multi-process-nocs-noprobe.perfscript b/llvm/test/tools/llvm-profgen/Inputs/multi-process-nocs-noprobe.perfscript
new file mode 100644
index 0000000000000..2ec2975cf07af
--- /dev/null
+++ b/llvm/test/tools/llvm-profgen/Inputs/multi-process-nocs-noprobe.perfscript
@@ -0,0 +1,12 @@
+; Load first process
+ 149754 PERF_RECORD_MMAP2 149754/149754: [0x5ffeb3637000(0x1000) @ 0x1000 103:02 16291238 2733047042]: r-xp /home/multi-process-nocs-noprobe.perfbin
+
+; Samples from first process
+ 149754 5ffeb3637150 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/-
+
+; Load second process
+ 149755 PERF_RECORD_MMAP2 149755/149755: [0x5caa46c41000(0x1000) @ 0x1000 103:02 16291238 2733047042]: r-xp /home/multi-process-nocs-noprobe.perfbin
+
+; Samples from both processes
+ 149755 5caa46c41190 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/-
+ 149754 5ffeb3637161 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/-
diff --git a/llvm/test/tools/llvm-profgen/Inputs/multi-process-warning.perfscript b/llvm/test/tools/llvm-profgen/Inputs/multi-process-warning.perfscript
new file mode 100644
index 0000000000000..bfca95dd26307
--- /dev/null
+++ b/llvm/test/tools/llvm-profgen/Inputs/multi-process-warning.perfscript
@@ -0,0 +1,12 @@
+; Load first process
+PERF_RECORD_MMAP2 149754/149754: [0x5ffeb3637000(0x1000) @ 0x1000 103:02 16291238 2733047042]: r-xp /home/multi-process-nocs-noprobe.perfbin
+
+; Samples from first process
+ 5ffeb3637150 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/-
+
+; Load second process
+PERF_RECORD_MMAP2 149755/149755: [0x5caa46c41000(0x1000) @ 0x1000 103:02 16291238 2733047042]: r-xp /home/multi-process-nocs-noprobe.perfbin
+
+; Samples from both processes
+ 5caa46c41190 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/- 0x5caa46c41190/0x5caa46c41195/P/-/-/1/UNCOND/- 0x5caa46c411a1/0x5caa46c4117c/P/-/-/1/UNCOND/-
+ 5ffeb3637161 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/- 0x5ffeb3637161/0x5ffeb363713c/P/-/-/1/UNCOND/- 0x5ffeb3637150/0x5ffeb3637155/P/-/-/1/UNCOND/-
diff --git a/llvm/test/tools/llvm-profgen/multi-pid-filter.test b/llvm/test/tools/llvm-profgen/multi-pid-filter.test
new file mode 100644
index 0000000000000..0802a6b545555
--- /dev/null
+++ b/llvm/test/tools/llvm-profgen/multi-pid-filter.test
@@ -0,0 +1,39 @@
+; Test that the --pid argument works, including when passing multiple PIDs
+
+; RUN: llvm-profgen --format=text --perfscript=%S/Inputs/multi-process-nocs-noprobe.perfscript --binary=%S/Inputs/multi-process-nocs-noprobe.perfbin --output=%t --profile-summary-cold-count=0 --multi-process-profile --pid=149754
+; RUN: FileCheck %s --input-file %t --check-prefix=CHECK-FIRST-ONLY
+
+CHECK-FIRST-ONLY-NOT: loop2
+
+CHECK-FIRST-ONLY: loop1:1302:0
+CHECK-FIRST-ONLY-NEXT: 0: 0
+CHECK-FIRST-ONLY-NEXT: 1: 31
+CHECK-FIRST-ONLY-NEXT: 2: 0
+
+CHECK-FIRST-ONLY-NOT: loop2
+
+; RUN: llvm-profgen --format=text --perfscript=%S/Inputs/multi-process-nocs-noprobe.perfscript --binary=%S/Inputs/multi-process-nocs-noprobe.perfbin --output=%t --profile-summary-cold-count=0 --multi-process-profile --pid=149755
+; RUN: FileCheck %s --input-file %t --check-prefix=CHECK-SECOND-ONLY
+
+CHECK-SECOND-ONLY-NOT: loop1
+
+CHECK-SECOND-ONLY:loop2:655:0
+CHECK-SECOND-ONLY-NEXT: 0: 0
+CHECK-SECOND-ONLY-NEXT: 1: 16
+CHECK-SECOND-ONLY-NEXT: 2: 0
+
+CHECK-SECOND-ONLY-NOT: loop1
+
+; RUN: llvm-profgen --format=text --perfscript=%S/Inputs/multi-process-nocs-noprobe.perfscript --binary=%S/Inputs/multi-process-nocs-noprobe.perfbin --output=%t --profile-summary-cold-count=0 --multi-process-profile --pid=149754,149755
+; RUN: FileCheck %s --input-file %t --check-prefix=CHECK-BOTH
+
+CHECK-BOTH: loop1:1302:0
+CHECK-BOTH-NEXT: 0: 0
+CHECK-BOTH-NEXT: 1: 31
+CHECK-BOTH-NEXT: 2: 0
+CHECK-BOTH-NEXT:loop2:655:0
+CHECK-BOTH-NEXT: 0: 0
+CHECK-BOTH-NEXT: 1: 16
+CHECK-BOTH-NEXT: 2: 0
+
+; original code can be found in multi-process-nocs-noprobe.test
diff --git a/llvm/test/tools/llvm-profgen/multi-process-cs-probe.test b/llvm/test/tools/llvm-profgen/multi-process-cs-probe.test
new file mode 100644
index 0000000000000..adc28040349ff
--- /dev/null
+++ b/llvm/test/tools/llvm-profgen/multi-process-cs-probe.test
@@ -0,0 +1,46 @@
+; Check that we can handle profiles with multiple processes, using pseudo probes
+; and a context-senstive profile
+
+; RUN: llvm-profgen --format=text --perfscript=%S/Inputs/multi-process-cs-probe.perfscript --binary=%S/Inputs/multi-process-cs-probe.perfbin --output=%t --profile-summary-cold-count=0 --multi-process-profile
+; RUN: FileCheck %s --input-file %t
+
+CHECK: loop1:93:0
+CHECK-NEXT: 1: 0
+CHECK-NEXT: 2: 31
+CHECK-NEXT: 3: 31
+CHECK-NEXT: 4: 31
+CHECK-NEXT: 5: 0
+CHECK-NEXT: !CFGChecksum: 88680961901
+CHECK-NEXT:loop2:47:0
+CHECK-NEXT: 1: 0
+CHECK-NEXT: 2: 16
+CHECK-NEXT: 3: 16
+CHECK-NEXT: 4: 15
+CHECK-NEXT: 5: 0
+CHECK-NEXT: !CFGChecksum: 88680961901
+
+; original code:
+; clang -g -fpseudo-probe-for-profiling -fno-omit-frame-pointer test.c -o multi-process-cs-probe.perfbin
+#include <stdint.h>
+
+// Loop for a while so we see samples in the function (compiled at -O0)
+void loop1() {
+ for (uint64_t i = 0; i < 10000000000; i++) {}
+}
+
+// Slightly modified to make sure there isn't any kind of linker merging
+void loop2() {
+ for (uint64_t i = 1; i < 10000000001; i++) {}
+}
+
+int main(int argc, char *argv[]) {
+ // Use CLI argument to choose which loop to run, so we can distinguish which
+ // process...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/169353
More information about the llvm-commits
mailing list