[racket-dev] Memory consumption of Racket

Here is another patch you can try to reduce caching of unused memory.

diff --git a/src/racket/gc2/alloc_cache.c b/src/racket/gc2/alloc_cache.c
index 44895af..d1f1c03 100644
--- a/src/racket/gc2/alloc_cache.c
+++ b/src/racket/gc2/alloc_cache.c
@@ -10,7 +10,7 @@
  */

  /* Controls how often freed pages are actually returned to OS: */
-#define BLOCKFREE_UNMAP_AGE 3
+#define BLOCKFREE_UNMAP_AGE 0

  /* Controls size of the cache */
  #define BLOCKFREE_CACHE_SIZE 3000


On 04/23/2011 05:14 AM, Jens Axel Søgaard wrote:
> 2011/4/22 Nevo<sakur.deagod at gmail.com>:
>> hi
>>    My attempt on porting Racket interpreter to iOS has been for a while and
>> I've been able to run interpreter on both iOS device as well iOS simulator.
> Great news.
>
>> Right now, it runs perfectly on iOS simulator, but lack of satisfaction on
>> device. The reason is for those devices like iPad/iPhone or Android, the
>> memory for standalone application is always constrained, and even a single
>> "hello world" evaluation would easily put the whole app runtime to death,
>> per my test.
> I am curious which iPhone and which iPad?
>
> For the non-iPad owners here are a few (unofficial) specs, so you
> have a rough idea of how much memory the iDevices have:
>
> Internal RAM for:
>    iPad 2            512MB
>    iPad 1            256MB
>
>    iPhone 4         512MB
>    iPhone 3GS    256MB
>    iPhone 3G      128MB
>    iPhone           128MB
>