Data: Change default compression mode to recommended settings (#13120)

* Data: Change default compression mode to recommended settings

As described [here](https://root.cern/doc/master/structROOT_1_1RCompressionSetting.html)
for ZSTD recommended is 505 not 501.
After measuring it, throughput/compression/peak memory usage stay stay almost unchanged but measured aod size reduces by 5%.

Signed-off-by: Felix Schlepper <felix.schlepper@cern.ch>

* AOD: Merger, Thinner use recommended compression settings

This propagates the changes from the AO2D producer also to the merger
and thinner.

Signed-off-by: Felix Schlepper <felix.schlepper@cern.ch>

* DPL: Set file compression to global settings

Signed-off-by: Felix Schlepper <felix.schlepper@cern.ch>

---------

Signed-off-by: Felix Schlepper <felix.schlepper@cern.ch>

Author: f3sch

Framework/AODMerger/src/aodMerger.cxx

@@ -95,7 +95,7 @@ int main(int argc, char* argv[])
   std::map<std::string, int> offsets;
   std::map<std::string, int> unassignedIndexOffset;
 
-  auto outputFile = TFile::Open(outputFileName.c_str(), "RECREATE", "", 501);
+  auto outputFile = TFile::Open(outputFileName.c_str(), "RECREATE", "", 505);
   TDirectory* outputDir = nullptr;
   long currentDirSize = 0;
 

Framework/AODMerger/src/aodThinner.cxx

@@ -89,7 +89,7 @@ int main(int argc, char* argv[])
   TStopwatch clock;
   clock.Start(kTRUE);
 
-  auto outputFile = TFile::Open(outputFileName.c_str(), (bOverwrite) ? "RECREATE" : "CREATE", "", 501);
+  auto outputFile = TFile::Open(outputFileName.c_str(), (bOverwrite) ? "RECREATE" : "CREATE", "", 505);
   if (outputFile == nullptr) {
     printf("Error: File %s exists or cannot be created!\n", outputFileName.c_str());
     return 1;

Framework/Core/src/DataOutputDirector.cxx

@@ -501,7 +501,7 @@ FileAndFolder DataOutputDirector::getFileFolder(DataOutputDescriptor* dodesc, ui
       auto fn = resdirname + "/" + mfilenameBases[ind] + ".root";
       delete mfilePtrs[ind];
       mParentMaps[ind]->Clear();
-      mfilePtrs[ind] = TFile::Open(fn.c_str(), mfileMode.c_str(), "", 501);
+      mfilePtrs[ind] = TFile::Open(fn.c_str(), mfileMode.c_str(), "", 505);
     }
     fileAndFolder.file = mfilePtrs[ind];
 

Framework/Utils/include/DPLUtils/RootTreeWriter.h

@@ -309,7 +309,7 @@ class RootTreeWriter
   /// branch definition provided to the constructor.
   void init(const char* filename, const char* treename, const char* treetitle = nullptr)
   {
-    mFile = std::make_unique<TFile>(filename, "RECREATE");
+    mFile = std::make_unique<TFile>(filename, "RECREATE", "", 505);
     mTree = std::make_unique<TTree>(treename, treetitle != nullptr ? treetitle : treename);
     mTree->SetDirectory(mFile.get());
     mTreeStructure->setup(mBranchSpecs, mTree.get());