diff --git a/tests/vault/gear/test-chain-load-test.cpp b/tests/vault/gear/test-chain-load-test.cpp
index 1192822e2..b0bcfb510 100644
--- a/tests/vault/gear/test-chain-load-test.cpp
+++ b/tests/vault/gear/test-chain-load-test.cpp
@@ -872,7 +872,6 @@ SHOW_EXPR(testLoad.getHash())
         {
           ComputationalLoad cpuLoad;
           CHECK (cpuLoad.timeBase == 100us);
-          cpuLoad.useAllocation = true;
           
           double micros = cpuLoad.invoke();
 SHOW_EXPR(micros)
@@ -890,6 +889,59 @@ SHOW_EXPR(micros)
 SHOW_EXPR(micros)
           CHECK (micros < 110);
           CHECK (micros > 90);
+          
+          cpuLoad.useAllocation = true;
+SHOW_EXPR(cpuLoad.useAllocation)
+          micros = cpuLoad.invoke();
+SHOW_EXPR(micros)
+          CHECK (micros < 133);
+          CHECK (micros > 80);
+          
+          micros = cpuLoad.benchmark();
+SHOW_EXPR(micros)
+          CHECK (micros < 110);
+          CHECK (micros > 90);
+          
+          cpuLoad.timeBase = 1ms;
+          cpuLoad.sizeBase *= 100;
+SHOW_EXPR(cpuLoad.sizeBase)
+          
+          cpuLoad.useAllocation = false;
+          micros = cpuLoad.benchmark();
+SHOW_EXPR(micros)
+          cpuLoad.useAllocation = true;
+          micros = cpuLoad.benchmark();
+SHOW_EXPR(micros)
+          
+          cpuLoad.calibrate();
+
+          cpuLoad.useAllocation = false;
+          micros = cpuLoad.benchmark();
+SHOW_EXPR(micros)
+          cpuLoad.useAllocation = true;
+          micros = cpuLoad.benchmark();
+SHOW_EXPR(micros)
+SHOW_EXPR(5)
+          cpuLoad.useAllocation = false;
+          micros = cpuLoad.invoke(5);
+SHOW_EXPR(micros)
+          cpuLoad.useAllocation = true;
+          micros = cpuLoad.invoke(5);
+SHOW_EXPR(micros)
+SHOW_EXPR(10)
+          cpuLoad.useAllocation = false;
+          micros = cpuLoad.invoke(10);
+SHOW_EXPR(micros)
+          cpuLoad.useAllocation = true;
+          micros = cpuLoad.invoke(10);
+SHOW_EXPR(micros)
+SHOW_EXPR(100)
+          cpuLoad.useAllocation = false;
+          micros = cpuLoad.invoke(100);
+SHOW_EXPR(micros)
+          cpuLoad.useAllocation = true;
+          micros = cpuLoad.invoke(100);
+SHOW_EXPR(micros)
         }
       
       
diff --git a/tests/vault/gear/test-chain-load.hpp b/tests/vault/gear/test-chain-load.hpp
index 679786451..43f113b43 100644
--- a/tests/vault/gear/test-chain-load.hpp
+++ b/tests/vault/gear/test-chain-load.hpp
@@ -1117,11 +1117,10 @@ namespace test {
       calibrate()
         {
 cout<<">CAL: speed="<<computationSpeed(useAllocation)<<" rounds:"<<roundsNeeded(1)<<endl;
-          auto speed = determineSpeed();
-cout<<".CAL: speed="<<speed<<endl;          
-          speed = determineSpeed();
-cout<<".CAL: speed="<<speed<<endl;          
-          computationSpeed(useAllocation) = determineSpeed();
+          TRANSIENTLY(useAllocation) = false;
+          performIncrementalCalibration();
+          useAllocation = true;
+          performIncrementalCalibration();
 cout<<"<CAL: speed="<<computationSpeed(useAllocation)<<" rounds:"<<roundsNeeded(1)<<endl;
         }
       
@@ -1146,10 +1145,10 @@ cout<<"<CAL: speed="<<computationSpeed(useAllocation)<<" rounds:"<<roundsNeeded(
         {
           auto cnt = roundsNeeded(scaleStep);
           auto siz = scaleStep * sizeBase;
+          auto rep = max (cnt/siz, 1u);
           // increase size to fit
-          siz = cnt /(cnt/siz);
-          cnt /= siz;
-          return make_pair (siz,cnt);
+          siz = cnt / rep;
+          return make_pair (siz,rep);
         }
       
       void
@@ -1184,6 +1183,20 @@ cout<<"<CAL: speed="<<computationSpeed(useAllocation)<<" rounds:"<<roundsNeeded(
           auto stepsDone  = roundsNeeded (step4gauge);
           return stepsDone / micros;
         }
+      
+      void
+      performIncrementalCalibration()
+        {
+          double& speed = computationSpeed(useAllocation);
+          double prev{speed},delta;
+          do {
+              speed = determineSpeed();
+              delta = abs(1.0 - speed/prev);
+cout<<".CAL: "<<prev<<"->"<<speed<<" Δ="<<delta<<endl;          
+              prev = speed;
+            }
+          while (delta > 0.05);
+        }
     };
   
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 03aff9f96..20d286ca6 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -99536,9 +99536,9 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <icon BUILTIN="stop-sign"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1702175359697" ID="ID_514427629" MODIFIED="1702175909285" TEXT="entwickle eine einfache reine lokale CPU-Last">
-<icon BUILTIN="flag-yellow"/>
-<node CREATED="1702175912809" ID="ID_163082441" MODIFIED="1702176005420" TEXT="als eigenst&#xe4;ndige Komponente realisiert">
+<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1702175359697" ID="ID_514427629" MODIFIED="1702264066131" TEXT="entwickle eine einfache reine lokale CPU-Last">
+<icon BUILTIN="pencil"/>
+<node COLOR="#435e98" CREATED="1702175912809" ID="ID_163082441" MODIFIED="1702264184671" TEXT="als eigenst&#xe4;ndige Komponente realisiert">
 <richcontent TYPE="NOTE"><html>
   <head/>
   <body>
@@ -99598,7 +99598,7 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 </node>
 </node>
 </node>
-<node CREATED="1702176870348" ID="ID_1843992678" MODIFIED="1702176878242" TEXT="soll statisch kalibrierbar sein">
+<node COLOR="#435e98" CREATED="1702176870348" ID="ID_1843992678" MODIFIED="1702264178196" TEXT="soll statisch kalibrierbar sein">
 <node CREATED="1702176883018" ID="ID_1063649357" MODIFIED="1702177162816" TEXT="auf 1 LoadUnit &#x2259; 500ms"/>
 <node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1702177164613" ID="ID_1363806337" MODIFIED="1702177174397" TEXT="potentiell schwieriges Thema">
 <icon BUILTIN="messagebox_warning"/>
@@ -99606,10 +99606,14 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <node CREATED="1702177263500" ID="ID_1442486267" MODIFIED="1702177272676" TEXT="der Arbeitspunkt kann extrem stark vom System abh&#xe4;ngen"/>
 <node CREATED="1702177960453" ID="ID_1625146144" MODIFIED="1702177990715" TEXT="der konkrete Aufruf bedingt einen zus&#xe4;tzlichen, schwer kalkulierbaren Overhead"/>
 </node>
-<node CREATED="1702177290852" ID="ID_67369431" MODIFIED="1702177302130" TEXT="mu&#xdf; daf&#xfc;r mindestends 3 microbenchmark-L&#xe4;ufe machen">
+<node COLOR="#435e98" CREATED="1702177290852" ID="ID_67369431" MODIFIED="1702264175024" TEXT="mu&#xdf; daf&#xfc;r mehrere microbenchmark-L&#xe4;ufe machen">
+<icon BUILTIN="yes"/>
 <node CREATED="1702177304850" ID="ID_807191919" MODIFIED="1702177310093" TEXT="eine Grobmessung"/>
 <node CREATED="1702177310801" ID="ID_1861526014" MODIFIED="1702177325890" TEXT="eine Feinmessung nach erster Kalibrierung"/>
 <node CREATED="1702177355580" ID="ID_592613013" MODIFIED="1702177360463" TEXT="eine Best&#xe4;tigungsmessung"/>
+<node COLOR="#338800" CREATED="1702264146445" ID="ID_183329724" MODIFIED="1702264157063" TEXT="noch besser: inkrementell bis Fehler &lt; 5%">
+<icon BUILTIN="button_ok"/>
+</node>
 </node>
 <node CREATED="1702232217892" ID="ID_683123783" MODIFIED="1702232389856" TEXT="die Kalibrierung verwendet aktuelle Einstellungen">
 <arrowlink COLOR="#61778b" DESTINATION="ID_94944522" ENDARROW="Default" ENDINCLINATION="138;-14;" ID="Arrow_ID_1125419326" STARTARROW="None" STARTINCLINATION="54;3;"/>
@@ -99618,20 +99622,19 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <node CREATED="1702232438440" ID="ID_1878954665" MODIFIED="1702232455960" TEXT="man mu&#xdf; f&#xfc;r die jeweiligen Einstellungen (re)kalibrieren"/>
 <node CREATED="1702232412226" HGAP="34" ID="ID_43541079" MODIFIED="1702232463171" TEXT="damit werden nicht-Linearit&#xe4;ten ausgeschaltet" VSHIFT="-7"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1702260328321" ID="ID_1651629984" MODIFIED="1702260339078" TEXT="beide Varianten inkrementell kalibrieren">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1702260328321" ID="ID_1651629984" MODIFIED="1702263255195" TEXT="beide Varianten inkrementell kalibrieren">
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1702180295927" ID="ID_773261601" MODIFIED="1702180308206" TEXT="Komponente testen">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1702180295927" ID="ID_773261601" MODIFIED="1702264050859" TEXT="Komponente testen">
+<icon BUILTIN="pencil"/>
 <node COLOR="#338800" CREATED="1702170514679" ID="ID_1603893065" MODIFIED="1702180426043" TEXT="Infrastruktur f&#xfc;r einen &#xbb;weight&#xab;-Parameter">
 <arrowlink COLOR="#68cb83" DESTINATION="ID_1963766841" ENDARROW="Default" ENDINCLINATION="549;30;" ID="Arrow_ID_1920696609" STARTARROW="None" STARTINCLINATION="47;-145;"/>
 <icon BUILTIN="button_ok"/>
 </node>
-<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1702180446234" ID="ID_257805938" MODIFIED="1702245405826" TEXT="Last und Eichung">
+<node CREATED="1702180446234" ID="ID_257805938" MODIFIED="1702264012440" TEXT="Last und Eichung">
 <arrowlink COLOR="#c26a36" DESTINATION="ID_168687387" ENDARROW="Default" ENDINCLINATION="-214;715;" ID="Arrow_ID_917319622" STARTARROW="None" STARTINCLINATION="-169;-474;"/>
-<icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#f0d5c5" COLOR="#990033" CREATED="1702245098652" ID="ID_1449908056" MODIFIED="1702260306418" TEXT="Fehler im Test?">
+<node COLOR="#435e98" CREATED="1702245098652" ID="ID_1449908056" MODIFIED="1702263276344" TEXT="Fehler im Test?">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -99654,6 +99657,31 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 </richcontent>
 <icon BUILTIN="help"/>
 </node>
+<node COLOR="#338800" CREATED="1702263260126" ID="ID_1499147739" MODIFIED="1702264010690" TEXT="funktioniert ordentlich">
+<icon BUILTIN="button_ok"/>
+</node>
+<node CREATED="1702263313431" ID="ID_895745548" MODIFIED="1702264006022" TEXT="CPU sogar mit scaleStep OK"/>
+<node CREATED="1702265746035" ID="ID_1709742498" MODIFIED="1702265757916" TEXT="gr&#xf6;&#xdf;ere Timebase &#x27f6; schneller"/>
+<node CREATED="1702263578440" ID="ID_1625923973" MODIFIED="1702264017267" TEXT="mem wird langsamer">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      bei..
+    </p>
+    <p>
+      sizeBase = 10000 &#10236; +5%
+    </p>
+    <p>
+      sizeBase = 100000 &#10236; +10-20%
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="messagebox_warning"/>
+</node>
 </node>
 </node>
 </node>
@@ -99666,10 +99694,29 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 </node>
 </node>
 <node CREATED="1702178113354" ID="ID_1844351587" MODIFIED="1702178121761" TEXT="der Eichfaktor aus der Kalibrierung">
-<node CREATED="1702232275607" ID="ID_1593878835" MODIFIED="1702232401866" TEXT="platformFactor">
+<node CREATED="1702232275607" ID="ID_1593878835" MODIFIED="1702264132798" TEXT="computationSpeed()">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      repetitions/&#181;s
+    </p>
+  </body>
+</html>
+</richcontent>
 <linktarget COLOR="#61778b" DESTINATION="ID_1593878835" ENDARROW="Default" ENDINCLINATION="138;-14;" ID="Arrow_ID_193276040" SOURCE="ID_683123783" STARTARROW="None" STARTINCLINATION="54;3;"/>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1702264216478" ID="ID_1256970210" MODIFIED="1702265717124" TEXT="per default mit 100&#xb5;s aktiv">
+<arrowlink COLOR="#f41958" DESTINATION="ID_880925728" ENDARROW="Default" ENDINCLINATION="91;4;" ID="Arrow_ID_669621335" STARTARROW="None" STARTINCLINATION="-10;15;"/>
+<icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1702264248082" ID="ID_880925728" MODIFIED="1702265717124" TEXT="&#x27f9; Konsequenz: mu&#xdf; Graph-Berechnung statisch messen k&#xf6;nnen">
+<arrowlink COLOR="#b04460" DESTINATION="ID_1821698627" ENDARROW="Default" ENDINCLINATION="-913;-87;" ID="Arrow_ID_423579693" STARTARROW="None" STARTINCLINATION="-1124;53;"/>
+<linktarget COLOR="#f41958" DESTINATION="ID_880925728" ENDARROW="Default" ENDINCLINATION="91;4;" ID="Arrow_ID_669621335" SOURCE="ID_1256970210" STARTARROW="None" STARTINCLINATION="-10;15;"/>
 </node>
 </node>
 <node COLOR="#435e98" CREATED="1699756460900" ID="ID_1877216077" MODIFIED="1699758391567" TEXT="Implementierung per boost-Hash">
@@ -100943,6 +100990,34 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 </node>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1702264364035" ID="ID_1821698627" MODIFIED="1702265701973" TEXT="Basis-Messung (non-concurrent)">
+<linktarget COLOR="#b04460" DESTINATION="ID_1821698627" ENDARROW="Default" ENDINCLINATION="-913;-87;" ID="Arrow_ID_423579693" SOURCE="ID_880925728" STARTARROW="None" STARTINCLINATION="-1124;53;"/>
+<icon BUILTIN="flag-yellow"/>
+<node CREATED="1702264442593" ID="ID_1012991246" MODIFIED="1702264507186" TEXT="lineare Berechnungs-Zeit m&#xfc;hsam bis unm&#xf6;glich zu ermitteln">
+<icon BUILTIN="info"/>
+</node>
+<node CREATED="1702264696031" ID="ID_1280925602" MODIFIED="1702264716392" TEXT="daher Benchmark eines Berechnungs-Durchganges"/>
+<node BACKGROUND_COLOR="#f0d5c5" COLOR="#990033" CREATED="1702264680182" ID="ID_1945693212" MODIFIED="1702264692151" TEXT="kann man einen theoretischen Concurrency-Faktor bestimmen?">
+<icon BUILTIN="help"/>
+<node CREATED="1702265262323" ID="ID_1908727445" MODIFIED="1702265353793" TEXT="ja ... die Datenstruktur ist g&#xfc;nstig">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      und zwar der Umstand, da&#223; die Nodes <i>innerhalb eines Levels stets voneinander unabh&#228;ngig sind; </i>deshalb sind <i>zumindest</i>&#160;diese Nodes komplett parallelisierbar
+    </p>
+  </body>
+</html>
+</richcontent>
+<icon BUILTIN="idea"/>
+</node>
+<node CREATED="1702265418472" ID="ID_565310505" MODIFIED="1702265468382" TEXT="Beschleunigungsfaktor: &#x2205;w / floor(&#x2205;w/concurrency)">
+<icon BUILTIN="forward"/>
+</node>
+</node>
+</node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1700105555476" ID="ID_587761135" MODIFIED="1700105558876" TEXT="Scheduling">
 <icon BUILTIN="flag-yellow"/>
 <node COLOR="#338800" CREATED="1701488317653" ID="ID_502099140" MODIFIED="1702158167293" TEXT="Art der Integration festlegen">