Jeff King <peff@xxxxxxxx> writes:
> On Mon, Feb 20, 2012 at 09:25:00AM +0100, Piotr Krukowiecki wrote:
>
>> Is the cache set? Not sure how to check it. t0090-cache-tree.sh uses
>> test-dump-cache-tree and executes "read-tree HEAD" to establish the
>> cache, but in my case read-tree does not make the cache dumpable (but
>> it improves status performance).
>>
>> $ test-dump-cache-tree | wc -l
>> 0
>> $ git read-tree HEAD
>> $ test-dump-cache-tree | wc -l
>> 0
>> $ echo 3 | sudo tee /proc/sys/vm/drop_caches && time git status -- .
>> [...]
>> real 0m1.085s
>
> Hmm. I would think test-dump-cache-tree would do it. I don't know why
> read-tree wouldn't fill it in, though.
>
> Interestingly, on my git.git repo, I had an empty cache. Running "git
> read-tree HEAD" filled it (according to test-dump-cache-tree). It seems
> that running "git checkout" empties the cache. So perhaps git could do
> better about keeping the cache valid over time.
test_expect_failure 'checkout gives cache-tree' '
git checkout HEAD^ &&
test_shallow_cache_tree
'
;-)
--
Thomas Rast
trast@{inf,student}.ethz.ch
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