Makefile: allow tmpfs size to be more easily overridden, and use 500 MiB by default.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>

diff --git a/Makefile b/Makefile
index 97587cd4e60c98fb2bedfd79c486d395059276e7..432de3e418b68e72964f4da97fcd0ef4706386f3 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -69,15 +69,18 @@ quicktest: make-version
        $(TAHOE) debug trial $(TRIALARGS) $(TEST)
 
 # "make tmpfstest" may be a faster way of running tests on Linux. It works best when you have
-# at least 330 MiB of free physical memory (to run the whole test suite). Since it uses sudo
-# to mount/unmount the tmpfs filesystem, it might prompt for your password.
+# at least $(TMPFS_SIZE) of free physical memory (to run the whole test suite). Since it uses
+# sudo to mount/unmount the tmpfs filesystem, it might prompt for your password.
+
+TMPFS_SIZE = 500m
+
 .PHONY: tmpfstest
 tmpfstest:
        time make _tmpfstest 'TMPDIR=$(shell mktemp -d --tmpdir=.)'
 
 .PHONY: _tmpfstest
 _tmpfstest: make-version
-       sudo mount -t tmpfs -o size=400m tmpfs '$(TMPDIR)'
+       sudo mount -t tmpfs -o size=$(TMPFS_SIZE) tmpfs '$(TMPDIR)'
        -$(TAHOE) debug trial --rterrors '--temp-directory=$(TMPDIR)/_trial_temp' $(TRIALARGS) $(TEST)
        sudo umount '$(TMPDIR)'
        rmdir '$(TMPDIR)'