Hi, Sangho > Except the limit of memory, are there other problems of 32-bit binaries? I think there're no other problems, but the memory problem is quite serious. Especially when one launches lots of OpenGL apps or an OpenGL app which create large amounts of gl texture/gl buffer data. The thing is that most of the host OpenGL drivers will map the texture memory into process's address space even when it's not necessarily required, for example glTexImage2D call uploads texture data into texture, but with most OpenGL drivers it'll also map the memory and keep the pointer around until the texture is deleted. Thus, if you launch an app that makes use of 500M of textures then it'll eat 500M of QEMU's virtual address space. Thus, it's easy to see that such heavy apps can easily lead to QEMU out-of-memory crash.
On 03/09/2014 12:24 PM, Sangho Park wrote: > Hi, Stanislav Vorobiov and SeokYeon. > > I agree that 64-bit binaries may solve the memory limit and > LARGEADDRESSAWARE option may increase the limit. > However, I think that effort to support 64-bit binaries may not be > negligible since we need stable 64-bit libraries. > Relatively, LARGEADDRESSAWARE option may be supported with little effort. > > Except the limit of memory, are there other problems of 32-bit binaries? > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Stanislav Vorobiov > Sent: Friday, March 07, 2014 8:55 PM > To: [email protected]; [email protected] > Subject: Re: [Dev] [SDK/Emulator] 64-bit tizen emulator on windows > > Hi, SeokYeon > > Thanks for the info. 64-bit binaries would sure solve a bunch of problems > on 64-bit window such as unchangeable 2GB virtual memory limit in QEMU. On > 32-bit windows we can use /3GB boot flag, but it doesn't help on 64-bit > windows. If building 64-bit binary won't work there's another option of > using -Wl,--large-address-aware option which enabled one to use 4GB of > virtual memory in 32-bit apps on 64-bit windows, but I haven't tried it as > well... > > On 03/07/2014 03:34 PM, 황석연 wrote: >> Hi~ Stanislav, >> >> >> >> We tried to build 64 bit binary on Windows long times ago. >> >> But, there were many problems with MinGW toolchain with 64 bit. >> >> >> >> I think it can be done now, but we did not try it again after that. >> >> >> >> Have anyone tried this ?? >> >> >> >> ------- *Original Message* ------- >> >> *Sender* : Stanislav Vorobiov<[email protected]> Expert >> Engineer/SRR-Tizen S/W Group/삼성전자 >> >> *Date* : 2014-03-07 19:22 (GMT+09:00) >> >> *Title* : [Dev] [SDK/Emulator] 64-bit tizen emulator on windows >> >> >> >> Currently tizen emulator is 32-bit on 64-bit windows, is it possible to > build 64-bit tizen emulator on windows platform ? Have anyone tried this ? >> _______________________________________________ >> Dev mailing list >> [email protected] >> https://lists.tizen.org/listinfo/dev >> >> >> >> >> >> >> > > _______________________________________________ > Dev mailing list > [email protected] > https://lists.tizen.org/listinfo/dev > > _______________________________________________ Dev mailing list [email protected] https://lists.tizen.org/listinfo/dev
