Path: csiph.com!eternal-september.org!feeder.eternal-september.org!nntp.eternal-september.org!.POSTED!not-for-mail From: Lynn Wheeler Newsgroups: comp.os.linux.misc,comp.unix.shell,alt.folklore.computers Subject: Re: [OT] Dead DEC Punch card times (was Re: Taking Speedy too seriously) Date: Sun, 08 Nov 2026 08:32:30 -1000 Organization: Wheeler&Wheeler Lines: 27 Message-ID: <87o6bzp41t.fsf@localhost> References: <18dee4b6cab427fa$865$2574533$802601b3@news.usenetexpress.com> <11cdg33$47sq$1@dont-email.me> <11cdp6v$1qa8$3@gal.iecc.com> <875wy85ba3.fsf@localhost> MIME-Version: 1.0 Content-Type: text/plain Injection-Date: Sun, 08 Nov 2026 18:32:47 +0000 (UTC) Injection-Info: dont-email.me; logging-data="630404"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/zLtvr0GsuCe1bIUSi8I6pOnOQqjoA5d8="; posting-host="98d7c4ad43b3a6b29b8871fe584fafd4" User-Agent: Gnus/5.13 (Gnus v5.13) Cancel-Lock: sha1:py2iTSPhv68lCS02yN2K+wFI/Ko= sha1:n7u51nVpHbB8vvgOvrSQ+Sxv8FQ= sha256:7fq+td/Oumj3YvHFIPRCsAk3lngXx4pQ1KlHIz7RrVY= sha1:6I6m9/1A9qg/ThC7mkEj8mK5C1s= sha256:bMSFsiCFJnB27pzHZAKMp4ICkSqj6RznrkUOpOMvpm0= Xref: csiph.com comp.os.linux.misc:95354 comp.unix.shell:27343 alt.folklore.computers:236669 Lynn Wheeler writes: > Latest public benchmark I've found is 2010 z196 "Peak I/O" getting 2M > IOPS using 104 FICON (20K IOPS/FICON). About the same time a native FCS > is announced for E5-2600 server blades getting over million IOPS (two > such FCS higher throughput than 104 FICON running over FCS). Note IBM > docs has SAPs (system assist processors that do actual I/O) CPU be kept > to 70% ... or 1.5M IOPS ... also no CKD DASD have been made for decades > (just simulated with industry standard fixed-block devices). 2010: Max configured z196, $30M, 80core, 50BIPS. Intel E5-2600, 16cores, 500BIPS IBM base list price for E5-2600 server blade was $1815 2010 Note large cloud operations with multiple megadatacenters around the world with half million or more server blades with enormous automation and able to run megadatacenter with 70-80 staff and assembled their own server blades at 1/3rd the cost of brand name vendors. There was then industry articles that server chip makers were shipping half their products directly to megadatacenters. Shortly later, IBM sells off its server blade business. -- virtualization experience starting Jan1968, online at home since Mar1970