RE: I/O and db_file_multiblock_read_count

ahhh... I haven't touched Sol in 5 years...I guess it shows!  Thanks,
Matt


________________________________

        From: Matthew Zito [mailto:mzito@xxxxxxxxxxx] 
        Sent: Tuesday, December 12, 2006 9:51 AM
        To: kevinc@xxxxxxxxxxxxx; oracle-l
        Subject: RE: I/O and db_file_multiblock_read_count
        
        
        Nono, its just that on Linux, let's say, cat S.dbf > /dev/null
is fast, but an strace will show that its actually doing a stream of
write()s to the device.  On solaris, it does something like (horrible
perl-ish pseudocode):
         
        if ( dest == /dev/null) {
            exit 0;
        } else {
            write(contents, dest);
        }
         
         
        Matt


________________________________

                From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Kevin Closson
                Sent: Tuesday, December 12, 2006 12:45 PM
                To: oracle-l
                Subject: RE: I/O and db_file_multiblock_read_count
                
                
                what? can't dump junk in the bit bucket on Sol? I must
not be gettign your point


________________________________

                        From: Matthew Zito [mailto:mzito@xxxxxxxxxxx] 
                        Sent: Tuesday, December 12, 2006 9:40 AM
                        To: kevinc@xxxxxxxxxxxxx; oracle-l
                        Subject: RE: I/O and
db_file_multiblock_read_count
                        
                        
                        /dev/null is hard, as some OS'es, solaris
notably, do evil tricks with certain utilities (like cat something to
/dev/null - it returns immediately).  Not sure about dd


________________________________

                                From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Kevin Closson

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