On Nov 3, 2005, at 12:16 PM, Bulat Ziganshin wrote:
Hello Jan-Willem,
Thursday, November 03, 2005, 8:08:09 PM, you wrote:
JWM> I've recently been experimenting with unsafeFreeze/unsafeThaw in JWM> GHC. Judicious use of these functions vastly reduces GC overhead in JWM> Data.HashTable. However, a slightly mis-timed GC will cause the JWM> whole mess to crash.
i had (for another reason) proposal for adding disableGC/enableGC primitives to GHC. Simon Marlow says that it is in principle possible, although is not easy
I'd rather the performance problems with tracing of large mutable objects were fixed, frankly. And I rather suspect I can Do The Right thing here without enabling/disabling GC (by swapping out refs and swapping them back in again, if need be). But there are definitely times this'd be interesting. -Jan
-- Best regards, Bulat mailto:bulatz@HotPOP.com