Hi, > > After creating the missing files by myself I called make again and this > > time they are > > automatically created (although they already have been there)... and dvbcut > > was also > > build succesfully. > > Actually, they should be created when you run "make dep" for the first > time. And they're only deleted by "make distclean".
Ah,,... did't tried a 'make dep'... just wondered why they are created when they are already there, whereas before when they was missing they not have been created! > > > PS: Has disabling the mmap part under windows any disadvantages? > > I'm not sure if mmap ever had any advantages on Windows at all, compared > to read. > > On Linux/Unix, I would claim that mmap is a little faster (but not > much). On Windows, the difference in performance (if there is any) > doesn't matter because mmap didn't work correctly in the first place. > But if someone can provide a working implementation (in particular, one > that also works with files >= 2 GB), we can turn mmap on again and compare. > OK, if it's just an neglectable performance issue it doesn't really matters if switched off... just wondered that you could easily switch it off by just disabling 20 consecutive lines of code. ;-) > Note that mmap isn't optimal either. What I really would like to try is > direct disk access (O_DIRECT) on Linux. Unlike raw device access, it > still reads/writes files (with some alignment restrictions), but it > doesn't cache the data. Yeah, that could give a boost in performance... Found a nice IBM article on that issue (for AIX): http://www.ibm.com/developerworks/aix/library/au-DirectIO.html But there (on AIX) you have to enable this additionally by a mount option, which is not really practical for our application. But I don't know how that is implemented under linux... Also you may have to read (sequentially) larger chunks of data, since you don't benefit anymore from read-ahead algorithms. And this (http://kerneltrap.org/node/7563) containes a nice statement of Mr.Linux against DIO! ;-) Very funny... :-) ciao Ralph -- ======================================================= Ralph Glasstetter phone 0721 359166 Rüppurrer Str. 62 email [EMAIL PROTECTED] 76137 Karlsruhe fax/voice 01212 5 107 16 958 ======================================================= _____________________________________________________________________ Der WEB.DE SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! http://smartsurfer.web.de/?mc=100071&distributionid=000000000066
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