x/scalpels
Code Issues Proposed changes

add sqlalchemy execution tracer

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Change-Id: I3e77ada0d6670240c23ead2a699f0f0ee2facb28
This commit is contained in:
Kun Huang 2015-11-04 22:49:14 +08:00
parent 272792ef58
commit a0760df95a
3 changed files with 18 additions and 0 deletions
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3
scalpels/agents/base.py
View File

@ -88,3 +88,6 @@ def parse_oslolock(out):
def parse_modelsave(out): def parse_modelsave(out):
return _parse_count_stream(out, "Model-Save") return _parse_count_stream(out, "Model-Save")
def parse_sqlaexec(out):
return _parse_count_stream(out, "Sqlalchemy-Execute")

1
scalpels/cli/actions/start.py
View File

@ -42,6 +42,7 @@ agents_map = {
"traffic": "bash %s/device-input-traffic.sh eth0", "traffic": "bash %s/device-input-traffic.sh eth0",
"oslolock": "stap %s/oslo-lock.stp", # with sudo, need add current user to stapdev group "oslolock": "stap %s/oslo-lock.stp", # with sudo, need add current user to stapdev group
"modelsave": "stap %s/model-save.stp", # with sudo, need add current user to stapdev group "modelsave": "stap %s/model-save.stp", # with sudo, need add current user to stapdev group
"sqlaexec": "stap %s/sqla-exec.stp", # with sudo, need add current user to stapdev group
} }
def run(config): def run(config):

14
scripts/sqla-exec.stp Executable file
View File

@ -0,0 +1,14 @@
#!/usr/bin/stap
global count = 0;
global old_count = 0;
probe python.function.entry {
if ((funcname == "execute") && isinstr(filename, "sqlalchemy/engine/base.py") && (lineno == 846)) {
count = count + 1;
}
}
probe timer.ms(1000) {
new_count = count - old_count;
printf("%d\n", new_count);
old_count = count;
}