From 02d5ba2f9c9e5f3eb43647d29d6c31aeffbffcc8 Mon Sep 17 00:00:00 2001
From: Pawel Dziepak <pdziepak@quarnos.org>
Date: Wed, 28 May 2014 02:49:56 +0200
Subject: [PATCH] trace: filter memory analyzer output by minimum allocation
count
Signed-off-by: Pawel Dziepak <pdziepak@quarnos.org>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
---
scripts/memory_analyzer.py | 12 ++++++++++--
scripts/trace.py | 9 ++++++++-
2 files changed, 18 insertions(+), 3 deletions(-)
diff --git a/scripts/memory_analyzer.py b/scripts/memory_analyzer.py
index 19f124cc9..2b85d8aad 100644
--- a/scripts/memory_analyzer.py
+++ b/scripts/memory_analyzer.py
@@ -155,8 +155,10 @@ class TreeKey(object):
def __hash__(self):
return self.this.__hash__()
+def filter_min_count(min_count):
+ return lambda node: node.key.alloc >= min_count
-def show_results(mallocs):
+def show_results(mallocs, node_filters):
root = tree.TreeNode(TreeKey('All', None))
lost = 0
@@ -189,4 +191,10 @@ def show_results(mallocs):
def formatter(key):
return key.key.__str__()
- tree.print_tree(root, formatter)
+ def node_filter(*args):
+ for filter in node_filters:
+ if not filter(*args):
+ return False
+ return True
+
+ tree.print_tree(root, formatter, node_filter=node_filter)
diff --git a/scripts/trace.py b/scripts/trace.py
index 0d5ca2087..0e006d976 100755
--- a/scripts/trace.py
+++ b/scripts/trace.py
@@ -111,9 +111,14 @@ def list_trace(args):
def mem_analys(args):
mallocs = {}
+
+ node_filters = []
+ if args.min_count:
+ node_filters.append(memory_analyzer.filter_min_count(args.min_count))
+
with get_trace_reader(args) as reader:
memory_analyzer.process_records(mallocs, reader.get_traces())
- memory_analyzer.show_results(mallocs)
+ memory_analyzer.show_results(mallocs, node_filters)
def add_time_slicing_options(parser):
group = parser.add_argument_group('time slicing')
@@ -560,6 +565,8 @@ if __name__ == "__main__":
Requires memory_* tracepoints enabled.
""")
add_trace_source_options(cmd_memory_analyzer)
+ cmd_memory_analyzer.add_argument("--min-count", action='store', type=int,
+ help="show only allocations at least as frequent as the specified threshold")
cmd_memory_analyzer.set_defaults(func=mem_analys, paginate=True)
args = parser.parse_args()
--
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