diff --git a/.gitignore b/.gitignore
index 8d51711ada..7fdb05670c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -176,29 +176,43 @@ icu4c/source/test/perf/charperf/Debug
 icu4c/source/test/perf/charperf/Makefile
 icu4c/source/test/perf/charperf/Release
 icu4c/source/test/perf/charperf/charperf
+icu4c/source/test/perf/charperf/debug
+icu4c/source/test/perf/charperf/release
 icu4c/source/test/perf/collperf/*.d
 icu4c/source/test/perf/collperf/*.o
 icu4c/source/test/perf/collperf/Debug
 icu4c/source/test/perf/collperf/Makefile
 icu4c/source/test/perf/collperf/Release
 icu4c/source/test/perf/collperf/collperf
+icu4c/source/test/perf/collperf/debug
+icu4c/source/test/perf/collperf/release
+icu4c/source/test/perf/convperf/debug
+icu4c/source/test/perf/convperf/release
 icu4c/source/test/perf/normperf/*.d
 icu4c/source/test/perf/normperf/*.o
 icu4c/source/test/perf/normperf/Debug
 icu4c/source/test/perf/normperf/Makefile
 icu4c/source/test/perf/normperf/Release
+icu4c/source/test/perf/normperf/debug
 icu4c/source/test/perf/normperf/normperf
+icu4c/source/test/perf/normperf/release
+icu4c/source/test/perf/perf.ncb
+icu4c/source/test/perf/perf.suo
 icu4c/source/test/perf/ubrkperf/*.d
 icu4c/source/test/perf/ubrkperf/*.o
 icu4c/source/test/perf/ubrkperf/Debug
 icu4c/source/test/perf/ubrkperf/Makefile
 icu4c/source/test/perf/ubrkperf/Release
+icu4c/source/test/perf/ubrkperf/debug
+icu4c/source/test/perf/ubrkperf/release
 icu4c/source/test/perf/ubrkperf/ubrkperf
 icu4c/source/test/perf/usetperf/*.d
 icu4c/source/test/perf/usetperf/*.o
 icu4c/source/test/perf/usetperf/Debug
 icu4c/source/test/perf/usetperf/Makefile
 icu4c/source/test/perf/usetperf/Release
+icu4c/source/test/perf/usetperf/debug
+icu4c/source/test/perf/usetperf/release
 icu4c/source/test/perf/usetperf/usetperf
 icu4c/source/test/perf/ustrperf/*.d
 icu4c/source/test/perf/ustrperf/*.o
@@ -206,11 +220,15 @@ icu4c/source/test/perf/ustrperf/Debug
 icu4c/source/test/perf/ustrperf/Makefile
 icu4c/source/test/perf/ustrperf/Release
 icu4c/source/test/perf/ustrperf/charperf
+icu4c/source/test/perf/ustrperf/debug
+icu4c/source/test/perf/ustrperf/release
 icu4c/source/test/perf/utfperf/*.d
 icu4c/source/test/perf/utfperf/*.o
 icu4c/source/test/perf/utfperf/Debug
 icu4c/source/test/perf/utfperf/Makefile
 icu4c/source/test/perf/utfperf/Release
+icu4c/source/test/perf/utfperf/debug
+icu4c/source/test/perf/utfperf/release
 icu4c/source/test/perf/utfperf/utfperf
 icu4c/source/test/testdata/Makefile
 icu4c/source/test/testdata/out