https://bugzilla.novell.com/show_bug.cgi?id=634529
https://bugzilla.novell.com/show_bug.cgi?id=634529#c0 Summary: Mono runtime always allocates ~3MB of data for shared file info structs Classification: Mono Product: Mono: Runtime Version: SVN Platform: All OS/Version: All Status: NEW Severity: Major Priority: P5 - None Component: io-layer AssignedTo: [email protected] ReportedBy: [email protected] QAContact: [email protected] Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_4; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.126 Safari/533.4 The source, where the problem occurs: http://github.com/mono/mono/blob/master/mono/io-layer/wapi-private.h 175: #define _WAPI_FILESHARE_SIZE 102400 <...> 195: struct _WapiFileShare share_info[_WAPI_FILESHARE_SIZE]; This array (~3.0 MB) gets allocated almost every time on Android and iPhone platforms when any of handles are accessed and this code is unnecessary heap hungry on mobile platforms. Defining DISABLE_SHARED_HANDLES doesn't solve the case, because even in this case memory gets allocated in : gpointer _wapi_shm_attach (_wapi_shm_t type) { guint32 size; switch(type) { case WAPI_SHM_DATA: return g_malloc0 (sizeof(struct _WapiHandleSharedLayout)); case WAPI_SHM_FILESHARE: return g_malloc0 (sizeof(struct _WapiFileShareLayout)); default: g_error ("Invalid type in _wapi_shm_attach ()"); return NULL; } } Reproducible: Always Steps to Reproduce: 1. Run mono application check native heap size 2. Reduce _WAPI_FILESHARE_SIZE to 1024 (instead of 102400) 3. Recompile mono & run app, native heap size is reduced by ~2.9 MB -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the QA contact for the bug. _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
