RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 23:17:45 +00:00
Code Issues Activity Actions

Kernel+ProfileViewer: Display additional filesystem events

Browse source
This commit is contained in:
Jakub Berkop 2023-08-25 23:47:42 +02:00 • committed by Andrew Kaster
parent c184a0786f
commit 54e79aa1d9
16 changed files with 655 additions and 135 deletions
Download patch file Download diff file Expand all files Collapse all files

107
Userland/DevTools/Profiler/Profile.cpp
View file

@ -1,5 +1,6 @@
/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2023, Jakub Berkop <jakub.berkop@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -206,19 +207,51 @@ void Profile::rebuild_tree()
}
}
}
if (event.data.has<Event::FilesystemEventData>()) {
auto const& filesystem_event = event.data.get<Event::FilesystemEventData>();
auto const& path = filesystem_event.data.visit(
[&](Event::OpenEventData const& data) {
return data.path;
},
[&](Event::CloseEventData const& data) {
return data.path;
},
[&](Event::ReadvEventData const& data) {
return data.path;
},
[&](Event::ReadEventData const& data) {
return data.path;
},
[&](Event::PreadEventData const& data) {
return data.path;
});
if (event.data.has<Event::ReadData>()) {
auto const& read_event = event.data.get<Event::ReadData>();
auto& event_node = m_file_event_nodes->find_or_create_node(read_event.path);
auto& event_node = m_file_event_nodes->find_or_create_node(path);
event_node.for_each_parent_node([&](FileEventNode& node) {
node.increment_count();
auto const duration = filesystem_event.duration;
// Fixme: Currently events record 'timestamp' and 'start_timestamp' in ms resolution,
// which results in most durations equal to zero. Increasing the resolution should
// make the information more accurate.
auto const duration = event.timestamp - read_event.start_timestamp;
node.add_to_duration(duration);
filesystem_event.data.visit(
[&](Event::OpenEventData const&) {
node.open().duration += duration;
node.open().count++;
},
[&](Event::CloseEventData const&) {
node.close().duration += duration;
node.close().count++;
},
[&](Event::ReadvEventData const&) {
node.readv().duration += duration;
node.readv().count++;
},
[&](Event::ReadEventData const&) {
node.read().duration += duration;
node.read().count++;
},
[&](Event::PreadEventData const&) {
node.pread().duration += duration;
node.pread().count++;
});
});
}
}
@ -385,15 +418,55 @@ ErrorOr<NonnullOwnPtr<Profile>> Profile::load_from_perfcore_file(StringView path
if (it != current_processes.end())
it->value->handle_thread_exit(event.tid, event.serial);
continue;
} else if (type_string == "read"sv) {
auto const string_index = perf_event.get_addr("filename_index"sv).value_or(0);
event.data = Event::ReadData {
.fd = perf_event.get_integer<int>("fd"sv).value_or(0),
.size = perf_event.get_integer<size_t>("size"sv).value_or(0),
.path = profile_strings.get(string_index).value(),
.start_timestamp = perf_event.get_integer<size_t>("start_timestamp"sv).value_or(0),
.success = perf_event.get_bool("success"sv).value_or(false)
} else if (type_string == "filesystem"sv) {
Event::FilesystemEventData fsdata {
.duration = Duration::from_nanoseconds(perf_event.get_integer<u64>("durationNs"sv).value_or(0)),
.data = Event::OpenEventData {},
};
auto const filesystem_event_type = perf_event.get("fs_event_type"sv).value_or("").as_string();
if (filesystem_event_type == "open"sv) {
auto const string_index = perf_event.get_addr("filename_index"sv).value_or(0);
auto const filename = profile_strings.get(string_index).value_or("").view();
fsdata.data = Event::OpenEventData {
.dirfd = perf_event.get_integer<int>("dirfd"sv).value_or(0),
.path = filename,
.options = perf_event.get_integer<int>("options"sv).value_or(0),
.mode = perf_event.get_integer<u64>("mode"sv).value_or(0),
};
} else if (filesystem_event_type == "close"sv) {
auto const string_index = perf_event.get_addr("filename_index"sv).value_or(0);
auto const filename = profile_strings.get(string_index).value_or("").view();
fsdata.data = Event::CloseEventData {
.fd = perf_event.get_integer<int>("fd"sv).value_or(0),
.path = filename,
};
} else if (filesystem_event_type == "readv"sv) {
auto const string_index = perf_event.get_addr("filename_index"sv).value_or(0);
auto const filename = profile_strings.get(string_index).value().view();
fsdata.data = Event::ReadvEventData {
.fd = perf_event.get_integer<int>("fd"sv).value_or(0),
.path = filename,
};
} else if (filesystem_event_type == "read"sv) {
auto const string_index = perf_event.get_addr("filename_index"sv).value_or(0);
auto const filename = profile_strings.get(string_index).value().view();
fsdata.data = Event::ReadEventData {
.fd = perf_event.get_integer<int>("fd"sv).value_or(0),
.path = filename,
};
} else if (filesystem_event_type == "pread"sv) {
auto const string_index = perf_event.get_addr("filename_index"sv).value_or(0);
auto const filename = profile_strings.get(string_index).value().view();
fsdata.data = Event::PreadEventData {
.fd = perf_event.get_integer<int>("fd"sv).value_or(0),
.path = filename,
.buffer_ptr = perf_event.get_integer<FlatPtr>("buffer_ptr"sv).value_or(0),
.size = perf_event.get_integer<size_t>("size"sv).value_or(0),
.offset = perf_event.get_integer<off_t>("offset"sv).value_or(0),
};
}
event.data = fsdata;
} else {
dbgln("Unknown event type '{}'", type_string);
VERIFY_NOT_REACHED();