diff --git a/dev-tools/ad-hoc/JWu/partial_history.txt b/dev-tools/ad-hoc/JWu/partial_history.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7db891cf5e3ea5ea49a60181262aadb33e106c2c
--- /dev/null
+++ b/dev-tools/ad-hoc/JWu/partial_history.txt
@@ -0,0 +1,44 @@
+# Release 1.2.0
+| date | hostname | sysinfo | tr | total | MultiLayer | CylindersInD | RotatedPyram | CoreShell | SquareLattic | RadialParaCr | HexParaCryst | SSCA | Mesocrystal | PolMagCyl |
+| 2015-06-30 15:16:12 | jcnsopc126 | linuxx8664gcc | 0 | 20.120 | 1.686 | 1.156 | 1.947 | 0.974 | 2.814 | 1.177 | 2.055 | 3.835 | 1.831 | 2.644 |
+| 2015-06-30 15:16:37 | jcnsopc126 | linuxx8664gcc | 0 | 20.044 | 1.678 | 1.176 | 2.018 | 0.979 | 2.829 | 1.202 | 2.069 | 3.835 | 1.823 | 2.436 |
+| 2015-06-30 15:17:36 | jcnsopc126 | linuxx8664gcc | 0 | 20.347 | 1.699 | 1.319 | 2.010 | 1.003 | 2.822 | 1.197 | 2.031 | 3.861 | 1.890 | 2.515 |
+| 2015-06-30 15:19:12 | jcnsopc126 | linuxx8664gcc | 0 | 19.853 | 1.684 | 1.156 | 1.951 | 0.979 | 2.815 | 1.187 | 2.026 | 3.798 | 1.832 | 2.426 |
+
+# Release 1.3.0
+| date | hostname | sysinfo | tr | total | MultiLayer | CylindersInD | RotatedPyram | CoreShell | SquareLattic | RadialParaCr | HexParaCryst | SSCA | Mesocrystal | PolMagCyl |
+| 2015-07-31 14:38:50 | jcnsopc63 | linuxx8664gcc | 0 | 15.590 | 1.537 | 0.977 | 1.673 | 0.855 | 2.524 | 0.996 | 1.874 | 1.505 | 1.581 | 2.068 |
+
+# after some development, why it is slower now not clear (there was minor OutputData refactoring
+| date | hostname | sysinfo | tr | total | MultiLayer | CylindersInD | RotatedPyram | CoreShell | SquareLattic | RadialParaCr | HexParaCryst | SSCA | Mesocrystal | PolMagCyl |
+| 2015-09-23 14:54:52 | jcnsopc126 | linuxx8664gcc | 0 | 17.658 | 1.692 | 1.148 | 1.602 | 0.983 | 2.793 | 1.174 | 2.163 | 1.742 | 1.868 | 2.495 |
+
+# after masking
+| date | hostname | sysinfo | tr | total | MultiLayer | CylindersInD | RotatedPyram | CoreShell | SquareLattic | RadialParaCr | HexParaCryst | SSCA | Mesocrystal | PolMagCyl |
+| 2015-09-28 17:19:17 | jcnsopc126 | linuxx8664gcc | 0 | 21.595 | 2.108 | 1.412 | 1.888 | 1.275 | 3.615 | 1.496 | 2.478 | 2.139 | 2.340 | 2.845 |
+
+# working on mask performance
+| date | hostname | sysinfo | tr | total | MultiLayer | CylindersInD | RotatedPyram | CoreShell | SquareLattic | RadialParaCr | HexParaCryst | SSCA | Mesocrystal | PolMagCyl |
+| 2015-09-29 11:41:26 | jcnsopc126 | linuxx8664gcc | 0 | 18.188 | 1.793 | 1.172 | 1.647 | 1.012 | 2.945 | 1.290 | 2.197 | 1.798 | 1.849 | 2.486 |
+| 2015-09-29 11:46:58 | jcnsopc126 | linuxx8664gcc | 0 | 17.975 | 1.852 | 1.165 | 1.586 | 0.977 | 2.834 | 1.183 | 2.136 | 1.860 | 1.879 | 2.502 |
+
+# after RectangularDetector refactoring
+| date | hostname | sysinfo | tr | total | MultiLayer | CylindersInD | RotatedPyram | CoreShell | SquareLattic | RadialParaCr | HexParaCryst | SSCA | Mesocrystal | PolMagCyl |
+| 2015-10-21 10:42:06 | jcnsopc126 | linuxx8664gcc | 0 | 19.284 | 1.781 | 1.333 | 1.785 | 1.133 | 3.145 | 1.404 | 2.156 | 1.847 | 1.884 | 2.818 |
+| 2015-10-21 10:42:30 | jcnsopc126 | linuxx8664gcc | 0 | 19.756 | 1.737 | 1.336 | 1.842 | 1.200 | 3.262 | 1.397 | 2.116 | 1.912 | 2.013 | 2.942|
+
+# PreRelease state. Seems that much worser. Simulation normalize?
+| date | hostname | sysinfo | tr | total | MultiLayer | CylindersInD | RotatedPyram | CoreShell | SquareLattic | RadialParaCr | HexParaCryst | SSCA | Mesocrystal | PolMagCyl |
+| 2015-10-28 17:04:26 | jcnsopc126 | linuxx8664gcc | 0 | 25.693 | 2.573 | 1.693 | 2.410 | 1.472 | 4.134 | 1.748 | 2.856 | 2.376 | 2.715 | 3.716|
+
+# PreRelease. Moved checkPolarizationPresent() out of the loop.
+| date | hostname | sysinfo | tr | total | MultiLayer | CylindersInD | RotatedPyram | CoreShell | SquareLattic | RadialParaCr | HexParaCryst | SSCA | Mesocrystal | PolMagCyl |
+| 2015-10-29 09:17:30 | jcnsopc126 | linuxx8664gcc | 0 | 20.586 | 2.386 | 1.166 | 1.773 | 0.890 | 3.449 | 1.195 | 2.570 | 1.687 | 2.452 | 3.020 |
+
+# PreRelease. If I try to backup mP_specular_info->getInCoefficients(alpha_i, 0.0, wavelength)); in InterferenceFunctionStrategy
+| date | hostname | sysinfo | tr | total | MultiLayer | CylindersInD | RotatedPyram | CoreShell | SquareLattic | RadialParaCr | HexParaCryst | SSCA | Mesocrystal | PolMagCyl |
+| 2015-10-29 09:41:25 | jcnsopc126 | linuxx8664gcc | 0 | 19.921 | 2.416 | 0.984 | 1.654 | 0.778 | 3.333 | 1.027 | 2.923 | 1.505 | 2.359 | 2.942 |
+
+# PreRelease-1.5.0
+| date | hostname | sysinfo | tr | total | MultiLayer | CylindersInD | RotatedPyram | CoreShell | SquareLattic | RadialParaCr | HexParaCryst | SSCA | Mesocrystal | PolMagCyl |
+| 2016-02-11 14:10:57 | jcnsopc126 | linuxx8664gcc | 0 | 18.247 | 1.981 | 0.920 | 1.418 | 0.696 | 2.578 | 0.950 | 3.899 | 1.381 | 2.008 | 2.417 |
diff --git a/dev-tools/ad-hoc/JWu/perf-log-old2yaml.py b/dev-tools/ad-hoc/JWu/perf-log-old2yaml.py
new file mode 100755
index 0000000000000000000000000000000000000000..892ce94a391dfaff2ecd383e75b98611455403ad
--- /dev/null
+++ b/dev-tools/ad-hoc/JWu/perf-log-old2yaml.py
@@ -0,0 +1,127 @@
+#!/usr/bin/env python3
+
+'''
+To be used only once: convert performance log from legacy format to YAML
+'''
+
+import datetime, re, sys, pytz, yaml
+from collections import OrderedDict
+from pytz import timezone
+
+################################################################################
+# Improved YAML dumper, to write dicts and lists in nice form
+################################################################################
+
+class FlowSeq( list ): pass
+
+# The improved YAML dumper
+
+def improved_dump(data, stream=None, Dumper=yaml.Dumper, **kwds):
+ class ImprovedDumper(Dumper):
+ pass
+ def odict_representer(dumper, data):
+ return dumper.represent_mapping(
+ yaml.resolver.BaseResolver.DEFAULT_MAPPING_TAG,
+ data.items())
+ def flowseq_representer(dumper, data):
+ return dumper.represent_sequence(
+ yaml.resolver.BaseResolver.DEFAULT_SEQUENCE_TAG,
+ data,
+ flow_style=True )
+ ImprovedDumper.add_representer(OrderedDict, odict_representer)
+ ImprovedDumper.add_representer(FlowSeq, flowseq_representer)
+ return yaml.dump(data, stream, ImprovedDumper,
+ allow_unicode=True, encoding='utf-8',
+ default_flow_style=False, indent=4, width=70, **kwds)
+
+# Just for documentation, not used here: the corresponding loader.
+
+def improved_load(stream, Loader=yaml.Loader, object_pairs_hook=OrderedDict):
+ class ImprovedLoader(Loader):
+ pass
+ def construct_mapping(loader, node):
+ loader.flatten_mapping(node)
+ return object_pairs_hook(loader.construct_pairs(node))
+ ImprovedLoader.add_constructor(
+ yaml.resolver.BaseResolver.DEFAULT_MAPPING_TAG,
+ construct_mapping)
+ return yaml.load(stream, ImprovedLoader)
+
+################################################################################
+# Time conversion
+################################################################################
+
+garching = timezone('Europe/Berlin')
+def nice_datetime( dt ):
+ rounded = dt - datetime.timedelta(microseconds=dt.microsecond)
+ return garching.localize(rounded).isoformat()
+
+################################################################################
+# Standarized blocks
+################################################################################
+
+def coder(value, offset_coder, offset, precision):
+ ret = OrderedDict()
+ ret['value'] = value
+ ret['offset_coder'] = offset_coder
+ ret['offset'] = offset
+ ret['precision'] = precision
+ return ret
+
+def scan(j):
+ ret = OrderedDict()
+ ret['scan_parameters'] = OrderedDict()
+ ret['scan_parameters']['omgs'] = 0.1*j
+ ret['time'] = 2.02
+ ret['monitor'] = random.randint(10000, 40000)
+ ret['image'] = "img%04i" % j
+ return ret
+
+################################################################################
+# Main
+################################################################################
+
+o = []
+
+fni = 'partial_history.txt'
+fno = 'performance_log2.yaml'
+fd = open( fni, 'r' )
+ti = fd.read()
+fd.close()
+
+aa = re.split( r'\n\s*?\n', ti )
+for a in aa: # block
+ bb = re.split( r'\n', a.rstrip() )
+ m = re.match( r'#\s*(.*)', bb[0] )
+ if not m:
+ raise "block header not found"
+ comment = m.group(1)
+ # print("### "+comment[0:20]+" --> %i" %( len(bb)-2 ) )
+ header = re.split( r'\s*\|\s*', bb[1] )[1:-1]
+ if header[0]!="date":
+ raise "unexpected block header"
+ nentry = len(header)
+ outcome = []
+ for b in bb[2:]:
+ c = re.split( r'\s*\|\s*', b )[1:-1]
+ # print("'"+b+"'")
+ if len(c)!=len(header):
+ raise "wrong number of records"
+ result = OrderedDict()
+ for i in range(len(header)):
+ out = c[i]
+ if header[i]=="tr":
+ out = int(out)
+ elif i>3:
+ out = float(out)
+ result[header[i]] = out
+ outcome.append( result )
+ entry = OrderedDict()
+ entry['version'] = comment
+ entry['outcome'] = outcome
+ o.append( entry )
+
+yaml_str = improved_dump( o )
+fd = open( fno, 'wb' )
+fd.write( yaml_str )
+fd.close()