From: "Massimo S." Received: from [192.168.100.201] (HELO mail.2rosenthals.com) by 2rosenthals.com (CommuniGate Pro SMTP 5.4.10) with ESMTPS id 2814474 for virtualized_ecs_users@2rosenthals.com; Fri, 10 Dec 2021 15:48:51 -0500 Received: from secmgr-va.randr ([192.168.200.201]:39932 helo=mail2.2rosenthals.com) by mail.2rosenthals.com with esmtp (Exim 4.94.2) (envelope-from ) id 1mvmoq-0001zE-1D for virtualized_ecs_users@2rosenthals.com; Fri, 10 Dec 2021 15:48:41 -0500 Received: from mail2.quasarbbs.net ([80.86.52.115]:10067) by mail2.2rosenthals.com with esmtp (Exim 4.94.2) (envelope-from ) id 1mvmon-0007OY-06 for virtualized_ecs_users@2rosenthals.com; Fri, 10 Dec 2021 15:48:37 -0500 Received: from [192.168.10.199] (dtp [192.168.10.199]) by srv2 (Weasel v2.77) for ; 10 Dec 2021 21:48:38 X-SASI-Hits: BODYTEXTP_SIZE_3000_LESS 0.000000, BODY_SIZE_2000_2999 0.000000, BODY_SIZE_5000_LESS 0.000000, BODY_SIZE_7000_LESS 0.000000, HTML_00_01 0.050000, HTML_00_10 0.050000, IN_REP_TO 0.000000, LEGITIMATE_SIGNS 0.000000, MSG_THREAD 0.000000, NO_CTA_URI_FOUND 0.000000, NO_URI_FOUND 0.000000, NO_URI_HTTPS 0.000000, REFERENCES 0.000000, REPLYTO_SAMEAS_FROM 0.000000, SENDER_NO_AUTH 0.000000, SUPERLONG_LINE 0.050000, __BODY_NO_MAILTO 0.000000, __BOUNCE_CHALLENGE_SUBJ 0.000000, __BOUNCE_NDR_SUBJ_EXEMPT 0.000000, __CT 0.000000, __CTE 0.000000, __CT_TEXT_PLAIN 0.000000, __DQ_NEG_HEUR 0.000000, __DQ_NEG_IP 0.000000, __FORWARDED_MSG 0.000000, __FRAUD_MONEY_BIG_COIN 0.000000, __FRAUD_MONEY_BIG_COIN_DIG 0.000000, __FRAUD_PARTNERSHIP 0.000000, __FROM_DOMAIN_NOT_IN_BODY 0.000000, __FROM_NAME_NOT_IN_ADDR 0.000000, __FROM_NAME_NOT_IN_BODY 0.000000, __FUR_HEADER 0.000000, __HAS_FROM 0.000000, __HAS_MSGID 0.000000, __HAS_REFERENCES 0.000000, __HAS_REPLYTO 0.000000, __HEADER_ORDER_FROM 0.000000, __IN_REP_TO 0.000000, __MAIL_CHAIN 0.000000, __MIME_TEXT_ONLY 0.000000, __MIME_TEXT_P 0.000000, __MIME_TEXT_P1 0.000000, __MIME_VERSION 0.000000, __MOZILLA_USER_AGENT 0.000000, __NO_HTML_TAG_RAW 0.000000, __REFERENCES 0.000000, __REPLYTO_SAMEAS_FROM_ACC 0.000000, __REPLYTO_SAMEAS_FROM_ADDY 0.000000, __REPLYTO_SAMEAS_FROM_DOMAIN 0.000000, __SANE_MSGID 0.000000, __SUBJ_ALPHA_NEGATE 0.000000, __SUBJ_REPLY 0.000000, __TO_MALFORMED_2 0.000000, __TO_NAME 0.000000, __TO_NAME_DIFF_FROM_ACC 0.000000, __TO_REAL_NAMES 0.000000, __URI_NO_MAILTO 0.000000, __USER_AGENT 0.000000 X-SASI-Probability: 8% X-SASI-RCODE: 200 X-SASI-Version: Antispam-Engine: 4.1.4, AntispamData: 2021.12.10.200616 X-SASI-Hits: BODYTEXTP_SIZE_3000_LESS 0.000000, BODY_SIZE_2000_2999 0.000000, BODY_SIZE_5000_LESS 0.000000, BODY_SIZE_7000_LESS 0.000000, HTML_00_01 0.050000, HTML_00_10 0.050000, IN_REP_TO 0.000000, LEGITIMATE_SIGNS 0.000000, MSG_THREAD 0.000000, NO_CTA_URI_FOUND 0.000000, NO_URI_FOUND 0.000000, NO_URI_HTTPS 0.000000, REFERENCES 0.000000, REPLYTO_SAMEAS_FROM 0.000000, SENDER_NO_AUTH 0.000000, SUPERLONG_LINE 0.050000, __BODY_NO_MAILTO 0.000000, __BOUNCE_CHALLENGE_SUBJ 0.000000, __BOUNCE_NDR_SUBJ_EXEMPT 0.000000, __CT 0.000000, __CTE 0.000000, __CT_TEXT_PLAIN 0.000000, __DQ_NEG_HEUR 0.000000, __DQ_NEG_IP 0.000000, __FORWARDED_MSG 0.000000, __FRAUD_MONEY_BIG_COIN 0.000000, __FRAUD_MONEY_BIG_COIN_DIG 0.000000, __FRAUD_PARTNERSHIP 0.000000, __FROM_DOMAIN_NOT_IN_BODY 0.000000, __FROM_NAME_NOT_IN_ADDR 0.000000, __FROM_NAME_NOT_IN_BODY 0.000000, __FUR_HEADER 0.000000, __HAS_FROM 0.000000, __HAS_MSGID 0.000000, __HAS_REFERENCES 0.000000, __HAS_REPLYTO 0.000000, __HEADER_ORDER_FROM 0.000000, __IN_REP_TO 0.000000, __MAIL_CHAIN 0.000000, __MIME_TEXT_ONLY 0.000000, __MIME_TEXT_P 0.000000, __MIME_TEXT_P1 0.000000, __MIME_VERSION 0.000000, __MOZILLA_USER_AGENT 0.000000, __NO_HTML_TAG_RAW 0.000000, __REFERENCES 0.000000, __REPLYTO_SAMEAS_FROM_ACC 0.000000, __REPLYTO_SAMEAS_FROM_ADDY 0.000000, __REPLYTO_SAMEAS_FROM_DOMAIN 0.000000, __SANE_MSGID 0.000000, __SUBJ_ALPHA_NEGATE 0.000000, __SUBJ_REPLY 0.000000, __TO_MALFORMED_2 0.000000, __TO_NAME 0.000000, __TO_NAME_DIFF_FROM_ACC 0.000000, __TO_REAL_NAMES 0.000000, __URI_NO_MAILTO 0.000000, __USER_AGENT 0.000000 X-SASI-Probability: 8% X-SASI-RCODE: 200 X-SASI-Version: Antispam-Engine: 4.1.4, AntispamData: 2021.12.10.200616 Reply-To: ml@ecomstation.it Subject: Re: [Virtualized eCS] Vbox question and cores (AOS 503) To: Virtualized eCS Users Mailing List References: Organization: eComStation dot it Message-ID: <992d9088-055c-06fe-2d61-c90c8c130321@ecomstation.it> Date: Fri, 10 Dec 2021 21:48:32 +0100 User-Agent: Mozilla/5.0 (OS/2; U; Warp 4.5; it-IT; rv:1.7.13) Gecko/20060424 Thunderbird/1.0.8 Mnenhy/0.7.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: it-IT Content-Transfer-Encoding: 7bit Il 10/12/2021 18:20, Doug Bissett ha scritto: > On 2021-12-10, at 15:04:59, Massimo S. wrote: >> >> >> >> Il 09/12/2021 21:16, Doug Bissett ha scritto: >>> On 2021-12-09, at 20:20:28, Massimo S. wrote: >>>> >>>> Hi all, >>>> >>>> is it possible to give 3 or 5 cores to an AOS503 guest VM? >>>> >>>> thanks >>>> >>>> massimo >>> Yes. AFAIK, you can use up to the number of real cores. HOWEVER, using more than one core will cause problems, >> why? >> never had one with ACPI >> my production servers use 1, 2 or 4 cores, i never had one hang or trap >> >>> and it will likely not make much difference in performance (it makes very little difference when running a XP, or win 7, >> guests). >> >> no, sorry, they do if you are using real world production servers >> >>> >From what I see, VBox uses support similar to Hyper Threading, and Hyper Threading is not very friendly to OS/2. >>> Try it, and see what happens. I suspect that it will hang after a short period. I haven't tried it for a couple of years, something >> may have changed (but I doubt it). >> >> my production servers use 1, 2 or 4 cores, i never had a trap or hang or whatever >> my only doubt was MP (3,5,7) not SMP number of cores >> >> you didn't try that >> ok, thanks anyway >> >> massimo > > I think you misunderstood. The VBox HOST can run under any number of cores (including Hyper Threading). Using the setting in VBox to use more than one core for an OS/2 GUEST will cause trouble because VBox seems to use the same thing that Hyper Threading uses. Hyper Threading is not completely compatible with the OS/2 job scheduler, and it will, cause OS/2 to hang, eventually (usually sooner, than later). > Doug the host is WS2019 and the CPU is xeon 8 cores i repeat, i don't have any issue using 2 or 4 cores in the gust machine with ACPI (AN drv pack on ecs2.2b or AOS503) maybe this happened with old builds of OS/2, dunno ecs 2.1 or older.. massimo > My comments about XP and 7, were about using multiple processors in the GUEST. It makes very little difference over running them with a single processor configured, but that may depend on exactly what you are doing with them. >