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authorDaniel Wilhelm <daniel@wili.li>2014-04-18 17:16:21 +0200
committerDaniel Wilhelm <daniel@wili.li>2014-04-18 17:16:21 +0200
commit88a2d0007db222c339f0b6a17794a2014a241892 (patch)
tree75105ef49b3a52b7ee176a1ad480e7652e49825f /lib/parallel_scan.cpp
parent4.2 (diff)
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4.3
Diffstat (limited to 'lib/parallel_scan.cpp')
-rw-r--r--lib/parallel_scan.cpp15
1 files changed, 8 insertions, 7 deletions
diff --git a/lib/parallel_scan.cpp b/lib/parallel_scan.cpp
index 96b167b8..1052a408 100644
--- a/lib/parallel_scan.cpp
+++ b/lib/parallel_scan.cpp
@@ -141,7 +141,7 @@ Windows 7: Windows XP:
1 Thread: 41s | 13s 1 Thread: 45s | 13s
2 Threads: 42s | 11s 2 Threads: 38s | 8s
-=> Traversing does not take any advantage of file locality so that even multiple threads operating on the same disk impose no performance overhead!
+=> Traversing does not take any advantage of file locality so that even multiple threads operating on the same disk impose no performance overhead! (even faster on XP)
*/
@@ -196,7 +196,7 @@ public:
errorMsg.clear();
errorResponse.reset();
- //dummy.unlock();
+ dummy.unlock(); //optimization for condition_variable::notify_one()
conditionCanReportError.notify_one();
return rv;
@@ -204,13 +204,13 @@ public:
void processErrors(FillBufferCallback& callback) //context of main thread, call repreatedly
{
- boost::lock_guard<boost::mutex> dummy(lockErrorMsg);
+ boost::unique_lock<boost::mutex> dummy(lockErrorMsg);
if (!errorMsg.empty() && !errorResponse.get())
{
FillBufferCallback::HandleError rv = callback.reportError(copyStringTo<std::wstring>(errorMsg)); //throw!
errorResponse.reset(new FillBufferCallback::HandleError(rv));
- //dummy.unlock();
+ dummy.unlock(); //optimization for condition_variable::notify_one()
conditionGotResponse.notify_one();
}
}
@@ -293,6 +293,7 @@ private:
};
//-------------------------------------------------------------------------------------------------
+
struct TraverserShared
{
public:
@@ -372,7 +373,7 @@ void DirCallback::onFile(const Zchar* shortName, const Zstring& fullName, const
Linux: retrieveFileID takes about 50% longer in VM! (avoidable because of redundant stat() call!)
*/
- output_.addSubFile(fileNameShort, FileDescriptor(details.lastWriteTimeRaw, details.fileSize));
+ output_.addSubFile(fileNameShort, FileDescriptor(details.lastWriteTimeRaw, details.fileSize, details.id));
cfg.acb_.incItemsScanned(); //add 1 element to the progress indicator
}
@@ -547,8 +548,8 @@ void zen::fillBuffer(const std::set<DirectoryKey>& keysToRead, //in
zen::ScopeGuard guardWorker = zen::makeGuard([&]()
{
- std::for_each(worker.begin(), worker.end(), std::mem_fun_ref(&boost::thread::interrupt)); //interrupt all at once, then join
- std::for_each(worker.begin(), worker.end(), std::mem_fun_ref(&boost::thread::join));
+ std::for_each(worker.begin(), worker.end(), [](boost::thread& wt) { wt.interrupt(); }); //interrupt all at once, then join
+ std::for_each(worker.begin(), worker.end(), [](boost::thread& wt) { wt.join(); });
});
std::shared_ptr<AsyncCallback> acb = std::make_shared<AsyncCallback>();
bgstack15