Re: [Simh] SIMH vax.ini fine tuning
Hello, 1. Thank you Mark for the new master version. It builds perfect now: virtual:~/SIMH/build-master/markpizz-simh-a280dd2 # make BIN/vax if test ! -e BIN; then mkdir BIN; fi gcc -std=c99 -U__STRICT_ANSI__ -g -I . -DUSE_NETWORK -DUSE_TAP_NETWORK -D_GNU_SOURCE -DSIM_ASYNCH_IO -DUSE_READER_THREAD VAX/vax_cpu.c VAX/vax_cpu1.c VAX/vax_fpa.c VAX/vax_io.c VAX/vax_cis.c VAX/vax_octa.c VAX/vax_cmode.c VAX/vax_mmu.c VAX/vax_stddev.c VAX/vax_sysdev.c VAX/vax_sys.c VAX/vax_syscm.c VAX/vax_syslist.c PDP11/pdp11_rl.c PDP11/pdp11_rq.c PDP11/pdp11_ts.c PDP11/pdp11_dz.c PDP11/pdp11_lp.c PDP11/pdp11_tq.c PDP11/pdp11_xq.c PDP11/pdp11_ry.c PDP11/pdp11_vh.c PDP11/pdp11_cr.c PDP11/pdp11_io_lib.c scp.c sim_console.c sim_fio.c sim_timer.c sim_sock.c sim_tmxr.c sim_ether.c sim_tape.c sim_disk.c -DVM_VAX -DUSE_INT64 -DUSE_ADDR64 -I VAX -I PDP11 -o BIN/vax -lrt -lpthread -lpcap I have added to vax.ini on Ultrix set cpu idle=ULTRIX and on VMS set cpu idle=VMS and here is the result on ULTRIX V4.5 (Rev. 47) # uname -a ULTRIX ultrix 4.5 0 VAX sim> sh cpu CPU, idle=ULTRIX, idle enabled, stability wait = 20s, minimum sleep resolution = 2ms, 256MB, HALT to console ...and VMS $ sh sys /noproc OpenVMS V7.3 on node VAX 20-SEP-2011 06:33:43.99 Uptime 0 01:02:01 sim> show cpu CPU, idle=VMS, idle enabled, stability wait = 20s, minimum sleep resolution = 2ms, 256MB, HALT to console ...and indeed it works perfect for the VMS client PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 4815 root 30 10 323m 77m 5232 S 11 1.0 2:34.99 /root/SIMH/vms/bin/vax but not for Ultrix. It keeps taking 100% of the CPU PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 4881 root 30 10 323m 264m 5228 R 100 3.5 7:24.84 /root/SIMH/ultrix/bin/vax I have tried VMS and ALL parameters too. That did not help either on Ultrix client, while the VMS client was nicely running consuming just about 10-15 % of the CPU. Mark, can I help you somehow to solve this idle issue with Ultrix client? 2. >The boot setting are stored in the simulated NVRAM. Simh only updates >this file when you exit Simh. Do NOT kill the Simh process without >exiting cleanly. Thank you Craig. This was my problem. I always killed the screen process and never exited from simh cleanly. Now it boots as it should :) Thank you very much for all help. Regards, Z From: Mark Pizzolato - Info Comm [m...@infocomm.com] Sent: Tuesday, September 20, 2011 1:44 AM To: Arpadffy Zoltan; simh@trailing-edge.com Cc: Mark Pizzolato - Info Comm Subject: RE: SIMH vax.ini fine tuning On Monday, September 19, 2011 at 1:21 PM, Arpadffy Zoltan wrote: > Hello, > > I am so happy that thanks to Mark's master build I finally have a stable > system used through the network. > > ...but there are still some fine tuning issues that, unfortunately could not > find > any reference in the manuals. > > 1. what is the proper method enabling of the sim_idle_enab flag? I have > tested the "set cpu idle" command but the CPU is still in 100% usage The, as yet unreleased, code which you are now using has a different (I believe more robust) idle implementation for the VAX simulator. I believe that the current code will work correctly on most host systems given a host clock tick which is less than 10ms. The real issue is the minimum resolution on sleeping (1ms is good, 10ms isn't so good). The current code has a more robust means of determining the minimum sleep resolution. What version of Ultrix are you using? You should be using: sim> set cpu idle=Ultrix I just updated the code to display the minimum sleep resolution when you enter the command: sim> show cpu idle Please try the latest version to display the minimum sleep interval and let me know your Ultrix version. Once again, the URL for the tarball is: https://github.com/markpizz/simh/tarball/master Good Luck. - Mark Pizzolato ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] SIMH vax.ini fine tuning
On Mon, 19 Sep 2011, Seth Morabito wrote: > * On Mon, Sep 19, 2011 at 10:20:48PM +0200, Arpadffy Zoltan > wrote: > > I am so happy that thanks to Mark's master build I finally have a > > stable system used through the network. > > > > ...but there are still some fine tuning issues that, unfortunately > > could not find any reference in the manuals. > > > > 1. what is the proper method enabling of the sim_idle_enab flag? I > > have tested the "set cpu idle" command but the CPU is still in 100% > > usage > > With the stock 3.8-1 release, you'll need TWO lines (both of these are > required!): > > set cpu idle > set cpu idle=ultrix > > There seems to be a bug that causes the simulator to say "Invalid > argument" after the second line, but the idle flag is correctly set > anyway. Do a "show cpu" at the "sim>" prompt and you should see > something like: > > sim> show cpu > CPU, idle enabled=ULTRIX, 64MB, HALT to SIMH You need the vax-idle patch from http://sourceforge.net/projects/simh/files/Unofficial%20Patches/3.8.1/ for idle to work properly for all the supported operating systems. With this patch I can run a VMS-cluster of several VAXen on the same host with good performance. Also very _very_ nice is the tuntap patch for native tap support. No more taptap hacks. Very much more straight forward to set up networking using bridging on hosts that support tun/tap virtual interfaces (Linux, *BSD etc). Peter ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] SIMH vax.ini fine tuning
On Mon, 2011-09-19 17:23:18 -0400, Dan Gahlinger wrote: > > If you're using linux, then another thing you can use is "nice". > I always "nice" simh when it's running to keep cpu usage down overall. > > nice is one of the handiest linux/unix tools around. But please note that `nice' doesn't limit a process's CPU time per se. By using it, you're telling the kernel that this process should only get CPU cycles when there's no other process that might want to have them. On an otherwise idle systems, it doesn't really make a difference. SIMH will run on 100% simulating the guest OS's idle loop (or real work, though.) That is, you won't see power savings on the host system by nice'ing SIMH down. You may get that once you have useable idle loop detection. MfG, JBG -- Jan-Benedict Glaw jbg...@lug-owl.de +49-172-7608481 Signature of:Don't believe in miracles: Rely on them! the second : signature.asc Description: Digital signature ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] SIMH vax.ini fine tuning
On 19/09/2011 21:20, Arpadffy Zoltan wrote: Hello, I am so happy that thanks to Mark's master build I finally have a stable system used through the network. ...but there are still some fine tuning issues that, unfortunately could not find any reference in the manuals. 1. what is the proper method enabling of the sim_idle_enab flag? I have tested the "set cpu idle" command but the CPU is still in 100% usage set cpu idle=vms 2. I can change the auto-boot behaviour with "dep bdr 0" but is there any way to choose the boot device that will be saved/kept even after next simh start. like a permanent "set boot dua0" otherwise automatically attempts to boot XQA0 The boot setting are stored in the simulated NVRAM. Simh only updates this file when you exit Simh. Do NOT kill the Simh process without exiting cleanly. add the following to your vax.ini file: att nvr vax.nvr boot cpu >>> set boot dua0 E exit Next time you start up your NVRAM file should be read and boot from your new default boot device. -- Craig ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] SIMH vax.ini fine tuning
I'm also partial to the throttle command... I run a 11/780 (retromud.superglobalmegacorp.com) and 3% gives me the 'feel' of an older machine ... And my VPS provider hasn't complained about it either Which is nice as you cannot do anything to spike the cpu to 100% . For what it's worth.. Jason -Original Message- From: Dan Gahlinger [mailto:dgahl...@hotmail.com] Sent: Monday, September 19, 2011 5:23 PM To: zoltan.arpad...@scientificgames.se; simh@trailing-edge.com Subject: Re: [Simh] SIMH vax.ini fine tuning If you're using linux, then another thing you can use is "nice". I always "nice" simh when it's running to keep cpu usage down overall. nice is one of the handiest linux/unix tools around. Dan. > From: zoltan.arpad...@scientificgames.se > To: simh@trailing-edge.com > Date: Mon, 19 Sep 2011 22:20:48 +0200 > Subject: [Simh] SIMH vax.ini fine tuning > > Hello, > > I am so happy that thanks to Mark's master build I finally have a stable system used through the network. > > ...but there are still some fine tuning issues that, unfortunately could not find any reference in the manuals. > > 1. what is the proper method enabling of the sim_idle_enab flag? I have tested the "set cpu idle" command but the CPU is still in 100% usage > > 2. I can change the auto-boot behaviour with "dep bdr 0" but is there any way to choose the boot device that will be saved/kept even after next simh start. > like a permanent "set boot dua0" otherwise automatically attempts to boot XQA0 > > > Thank you. > > Regards, > Z > > > > ___ > Simh mailing list > Simh@trailing-edge.com > http://mailman.trailing-edge.com/mailman/listinfo/simh ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] SIMH vax.ini fine tuning
If you're using linux, then another thing you can use is "nice". I always "nice" simh when it's running to keep cpu usage down overall. nice is one of the handiest linux/unix tools around. Dan. > From: zoltan.arpad...@scientificgames.se > To: simh@trailing-edge.com > Date: Mon, 19 Sep 2011 22:20:48 +0200 > Subject: [Simh] SIMH vax.ini fine tuning > > Hello, > > I am so happy that thanks to Mark's master build I finally have a stable > system used through the network. > > ...but there are still some fine tuning issues that, unfortunately could not > find any reference in the manuals. > > 1. what is the proper method enabling of the sim_idle_enab flag? I have > tested the "set cpu idle" command but the CPU is still in 100% usage > > 2. I can change the auto-boot behaviour with "dep bdr 0" but is there any way > to choose the boot device that will be saved/kept even after next simh start. > like a permanent "set boot dua0" otherwise automatically attempts to boot > XQA0 > > > Thank you. > > Regards, > Z > > > > ___ > Simh mailing list > Simh@trailing-edge.com > http://mailman.trailing-edge.com/mailman/listinfo/simh ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] SIMH vax.ini fine tuning
* On Mon, Sep 19, 2011 at 10:20:48PM +0200, Arpadffy Zoltan wrote: > Hello, > > I am so happy that thanks to Mark's master build I finally have a > stable system used through the network. > > ...but there are still some fine tuning issues that, unfortunately > could not find any reference in the manuals. > > 1. what is the proper method enabling of the sim_idle_enab flag? I > have tested the "set cpu idle" command but the CPU is still in 100% > usage With the stock 3.8-1 release, you'll need TWO lines (both of these are required!): set cpu idle set cpu idle=ultrix There seems to be a bug that causes the simulator to say "Invalid argument" after the second line, but the idle flag is correctly set anyway. Do a "show cpu" at the "sim>" prompt and you should see something like: sim> show cpu CPU, idle enabled=ULTRIX, 64MB, HALT to SIMH > 2. I can change the auto-boot behaviour with "dep bdr 0" but is > there any way to choose the boot device that will be saved/kept > even after next simh start. like a permanent "set boot dua0" > otherwise automatically attempts to boot XQA0 It sounds like you're not saving your NVRAM file. Do you have a line in your ini file attaching NVRAM, like this? attach nvr nvram.bin That will save your NVRAM settings and re-load them when the simulator starts. Regards, -Seth ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
