diff --git a/Makefile.schemes b/Makefile.schemes
index ea97853..7069e3c 100644
--- a/Makefile.schemes
+++ b/Makefile.schemes
@@ -1,4 +1,6 @@
-all: results.Bigloo results.Bones results.Chez results.Chibi results.Chicken results.ChickenCSI results.Cyclone results.Femtolisp results.GambitC results.Gauche results.Gerbil results.Guile results.IronScheme results.Kawa results.Larceny results.Loko results.MIT results.Mosh results.Petite-Chez results.Picrin results.Racket results.S7 results.S9fES results.Sagittarius results.Stalin results.STklos results.TR7 results.Ypsilon
+all: results.Bigloo results.Bones results.Chez results.Chibi results.Chicken results.Cyclone results.Femtolisp results.GambitC results.Gauche results.Gerbil results.Guile results.IronScheme results.Kawa results.Larceny results.Loko results.MIT results.Mosh results.Picrin results.Racket results.S7 results.S9fES results.Sagittarius results.Stalin results.STklos results.TR7 results.Ypsilon
+## not relevant?
+# results.Petite-Chez results.ChickenCSI
 ## too slow / too little memory
 # results.TinyScheme
 ## not sure this can be made to work, it doesn't have read, begin, ...
diff --git a/bench b/bench
index 9b33517..be137e6 100755
--- a/bench
+++ b/bench
@@ -79,7 +79,8 @@ SYNTH_BENCHMARKS="equal bv2string"
 
 ALL_BENCHMARKS="$GABRIEL_BENCHMARKS $NUM_BENCHMARKS $KVW_BENCHMARKS $IO_BENCHMARKS $OTHER_BENCHMARKS $GC_BENCHMARKS $SYNTH_BENCHMARKS"
 
-ALL_SYSTEMS="bigloo bones chez chibi chicken chickencsi cyclone femtolisp gambitc gauche gerbil guile ironscheme kawa larceny loko mit mosh petite-chez picrin racket s7 s9fes sagittarius stklos tr7 ypsilon" # tinyscheme seems to run out of memory or time on *every* benchmark :-/
+ALL_SYSTEMS="bigloo bones chez chibi chicken cyclone femtolisp gambitc gauche gerbil guile ironscheme kawa larceny loko mit mosh picrin racket s7 s9fes sagittarius stklos tr7 ypsilon" # tinyscheme seems to run out of memory or time on *every* benchmark :-/
+# petite-chez  chickencsi
 # foment owllisp rhizome rscheme scheme48 vicare
 ################################################################