-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Corinna,
Am 11.03.2011 16:07, schrieb Corinna Vinschen: > Rainer, > > On Mar 11 15:23, Corinna Vinschen wrote: >> On Mar 11 15:13, Corinna Vinschen wrote: >>> On Mar 11 14:53, Rainer Emrich wrote: >>>> I have to be more clear. I increased the heap_chunk_in_mb to 1792 using: >>>> regtool -i set /HKLM/Software/Cygwin/heap_chunk_in_mb 1792 >>> >>> But that's the size of the application heap, not the size of the >>> cygheap. The cygheap is used by a couple of internal datastructures >>> of the cygwin DLL itself, while the application heap is used for malloc. >>> >>> So you raised the size of the application heap, probably not to 1792 >>> Megs, but the next lower allocation possible (cygwin decrements the size >>> in 1MB steps until the allocation succeeds. >>> >>> That's weird. malloc uses mmap, but only for allocations beyond 128K. >> >> Actually mmap is only used if you try to malloc >= 256K. >> >>> Since ld only allocates 64K chunks, it doesn't look like mmap is called >>> from malloc. OTOH, if raising the heap size helps, how do the >>> zillions of mmap calls into this picture?!? > > I was wondering if I could reduce the pressure on the cygheap by using a > simplified method to allocate the required bookkeeping datastructures. > It passes my homebrew mmap testsuite, but I would be curious if this > might fix your problem. I have not very much hope, but anyway... > > Would you mind if I send you a link to a cygwin DLL for testing by > private email? Yes, of course. You're welcome to send me a link. I' m able to test next week. > > > Thanks, > Corinna > Thanks, Rainer -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk16QPQACgkQoUhjsh59BL6YFgCgq3YQIscphjfAk/DMuMNQDkOy 5oYAoINlltB1e4TiPRx6G/q8T9NEb7fd =e3QZ -----END PGP SIGNATURE----- -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
