Re: Optimize kernel readahead using buffer access strategy

On Thu, Nov 14, 2013 at 9:09 PM, KONDO Mitsumasa
<kondo.mitsumasa@lab.ntt.co.jp> wrote:
> Hi,
>
> I create a patch that is improvement of disk-read and OS file caches. It can
> optimize kernel readahead parameter using buffer access strategy and
> posix_fadvice() in various disk-read situations.

When I compiled the HEAD code with this patch on MacOS, I got the following
error and warnings.

gcc -O0 -Wall -Wmissing-prototypes -Wpointer-arith
-Wdeclaration-after-statement -Wendif-labels
-Wmissing-format-attribute -Wformat-security -fno-strict-aliasing
-fwrapv -g -I../../../../src/include   -c -o fd.o fd.c
fd.c: In function 'BufferHintIOAdvise':
fd.c:1182: error: 'POSIX_FADV_SEQUENTIAL' undeclared (first use in
this function)
fd.c:1182: error: (Each undeclared identifier is reported only once
fd.c:1182: error: for each function it appears in.)
fd.c:1185: error: 'POSIX_FADV_RANDOM' undeclared (first use in this function)
make[4]: *** [fd.o] Error 1
make[3]: *** [file-recursive] Error 2
make[2]: *** [storage-recursive] Error 2
make[1]: *** [install-backend-recurse] Error 2
make: *** [install-src-recurse] Error 2

tablecmds.c:9120: warning: passing argument 5 of 'smgrread' makes
pointer from integer without a cast
bufmgr.c:455: warning: passing argument 5 of 'smgrread' from
incompatible pointer type

Regards,

-- 
Fujii Masao