X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=t%2FREADME;h=0e4e8d8862c96383a6f6f22a1b6bb01044925620;hb=12575b78fbc6db9eb8de12c8146c7d27eb821e09;hp=dcd3ebb5f2dcdbf15ca0e4a043b45cd2fc36cbb5;hpb=e8a12280530f16bf2089999ceefe35794d115d07;p=git.git

diff --git a/t/README b/t/README
index dcd3ebb5f..0e4e8d886 100644
--- a/t/README
+++ b/t/README
@@ -84,6 +84,12 @@ appropriately before running "make".
 	implied by other options like --valgrind and
 	GIT_TEST_INSTALLED.
 
+--root=<directory>::
+	Create "trash" directories used to store all temporary data during
+	testing under <directory>, instead of the t/ directory.
+	Using this option with a RAM-based filesystem (such as tmpfs)
+	can massively speed up the test suite.
+
 You can also set the GIT_TEST_INSTALLED environment variable to
 the bindir of an existing git installation to test that installation.
 You still need to have built this git sandbox, from which various