On Wed, Mar 25, 2015 at 8:49 AM, John Walker <[email protected]> wrote: > RE does suck, your arrogant (and PC-typical) comment not withstanding. > Mainframes are MUCH better built than PC's. Yes, PC's are FINALLY starting > to adopt much of the Mainframe architecture and concepts, but they still are > an inferior designed choke-pointed architecture. Feel free to belittle what > I said and I will feel free to laugh at the PC architecture and crappy code, > too.
Hum, you seem quite upset. But regular expressions don't come from the PC environment. They come from the older minicomputer environment. More specifically, they came from the UNIX camp. Certainly not from the Windows camp. I am a Linux partisan in that arena. I hate Windows. The z hardware is most definitely the most reliable on the planet. Beats the <elided> out of Intel, ARM, and MIPS. I've had a CPU and an OSA fail on me. But, and this is the biggie, neither of those failures even caused a burp in processing. In the CPU case, a spare CP was brought in and the _firmware_ recovered the instruction in progress. If the hardware hadn't told the SE which told the HMC, I never even would have known. Likewise, when the OSA failed, our second OSA did an ARP takeover and everything continued on it merry way with _no_ disruption to any software component or end user. The "open" systems people called me a liar when I told them that. Their idea of recovery is a "hot standby". Blech. As for the ISA, Intel seems to be very "ad hoc" compared to the z architecture. Especially in the virtualization arena. Basically, the z has a _single_ virtualization instruction: SIE. Intel has I don't know how many different versions of different instructions to let hypervisors run at all. I don't know how efficient vitualization actually is on Intel. But it wouldn't surprise me if it were a pig. -- If you sent twitter messages while exploring, are you on a textpedition? He's about as useful as a wax frying pan. 10 to the 12th power microphones = 1 Megaphone Maranatha! <>< John McKown
