On Mon, 26 Apr 2010 16:06:34 +0000, Ted MacNEIL wrote: >>When it comes to raw CPU power, PCs are very competitive. > >Yes. I've never disputed that. >But, when it comes to I/O ... > Depends on the I/O. For TCP/IP, I find z painfully slow. Examples:
OS X (Intel) ------------------------------------------- 500 $ time ftp localhost </dev/null Trying ::1... Connected to localhost. 220 ::1 FTP server (tnftpd 20080929) ready. Name (localhost:paulgilm): EOF received; login aborted. 221 Thank you for using the FTP service on ::1. real 0m1.536s user 0m0.002s sys 0m0.005s 501 $ 501 $ 501 $ time ftp localhost </dev/null Trying ::1... Connected to localhost. 220 ::1 FTP server (tnftpd 20080929) ready. Name (localhost:paulgilm): EOF received; login aborted. 221 Thank you for using the FTP service on ::1. real 0m0.064s user 0m0.002s sys 0m0.005s Solaris (Intel) ---------------------------------------- Solaris: 168$ time ftp localhost </dev/null Login incorrect. Login failed. real 0m0.04s user 0m0.00s sys 0m0.00s Solaris: 169$ time ftp localhost </dev/null Login incorrect. Login failed. real 0m0.03s user 0m0.00s sys 0m0.00s z/OS --------------------------------------------------- z/OS: time ftp localhost </dev/null IBM FTP CS V1R10 Connecting to: localhost 127.0.0.1 port: 21. 220-FTPD1 IBM FTP CS V1R10 at .COM, 16:32:42 on 2010-04-26. 220 Connection will close if idle for more than 5 minutes. NAME QUIT generated by unexpected end of file >>> QUIT 221 Quit command received. Goodbye. real 0m 9.21s user 0m 0.14s sys 0m 0.05s z/OS: time ftp localhost </dev/null IBM FTP CS V1R10 Connecting to: localhost 127.0.0.1 port: 21. 220-FTPD1 IBM FTP CS V1R10 at .COM, 16:32:55 on 2010-04-26. 220 Connection will close if idle for more than 5 minutes. NAME QUIT generated by unexpected end of file >>> QUIT 221 Quit command received. Goodbye. real 0m 9.23s user 0m 0.13s sys 0m 0.05s -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
