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[00:54:22] <KGB-linuxcnc> 03andy pugh 05cradek/multi-tlo 893390f 06linuxcnc 10(6 files) A demo config combining cradek's compounf offset (G43.2) and mah's * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=893390f
[00:54:22] <KGB-linuxcnc> 03andy pugh 05cradek/multi-tlo a7e5851 06linuxcnc Merge branch 'cradek/multi-tlo' of ssh://git.linuxcnc.org/git/linuxcnc into multi-tlo * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=a7e5851
[00:55:09] <andypugh> Oh damn and blast.
[00:55:24] <andypugh> What is that merge thing?
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[00:56:43] <andypugh> Why is it that I can _never_ figure out how to do the most obvious thing in git (ie, push my changes, and only my changes, to the branch I pulled from>)
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[00:58:19] <andypugh> The only way I have found that works is to commit, then reset —hard the local branch, cherry-pick the commit, and then push.
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[00:59:38] <andypugh> I actually thought after reading
http://longair.net/blog/2011/02/27/an-asymmetry-between-git-pull-and-git-push/ that I has figured out the magic incantation.
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[01:18:28] <CaptHindsight> after a few hours of running Mint Mate Debian (based on Gnome2) works as well as the livecd
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[01:20:15] <CaptHindsight> the ubuntu based Mint 17 and Ubuntu 14.04 have more latency spikes when starting apps or playing video
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[01:59:05] <KimK> CaptHindsight: I have recently installed Mint 17 Cinnamon 64 on a laptop, and I plan to install some flavor of Mint 17 on an old desktop, is there anything I can do to help?
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[06:53:31] <KGB-linuxcnc> 03Chris Morley 05v2.5_branch 60b3435 06linuxcnc 10src/emc/usr_intf/pncconf/pncconf.py pncconf -fix an icompatibility between MESA XMLs and linuxcnc XMLs * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=60b3435
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[07:09:21] <KGB-linuxcnc> 03Chris Morley 052.6 0013e46 06linuxcnc 10src/emc/usr_intf/pncconf/pncconf.py Merge branch 'v2.5_branch' into 2.6 * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=0013e46
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[07:30:26] <CaptHindsight> KimK: we're still tracking down the problem with 3.4.55 RTAI on really new AMD hardware and also UNITY desktop on Ubuntu with 14.04 or the Trusty version of Mint
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[07:33:42] <CaptHindsight> KimK: let us know how 3.4.55 RTAI works on your systems with those new releases of Mint
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[12:07:21] -!- mode/#linuxcnc-devel [+v cradek] by morgan.freenode.net
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[12:39:32] <jthornton> is there a link to the 2.6 online docs?
[12:43:27] * archivist would just put 2.6 where 2.3 ,2.4 was and expect it to just work
[12:46:28] <jthornton> there is no 2.x in the link only docs and master
[12:47:10] <archivist> http://www.linuxcnc.org/docs/2.6/
[12:47:34] * archivist ducks :)
[12:48:29] <jthornton> all I found was
http://linuxcnc.org/docview/html/ and
http://linuxcnc.org/docview/devel
[12:48:41] <jthornton> thanks for the link
[12:49:02] <archivist> I just googled for 2.4 and then edited the url
[12:49:24] <jthornton> youv'e been up longer than me today LOL
[12:49:28] <archivist> hehe
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[14:34:04] <jepler> andy/pcw: I think the basic idea of allowing a LBP_BITS to be more than 64 bits big would look something like this:
http://emergent.unpythonic.net/files/sandbox/0001-hostmot2-untested-allow-more-than-64-consecutive-LBP.patch -- but since I don't have a -rtai system handy it's not even compiled (I didn't port sserial to uspace yet, I guess I should)
[14:38:08] <pcw_home> the sserial stuff just worked with uspace-hm2-eth
[14:41:34] <jepler> oh really? I thought I didn't even compile it in.
[14:41:39] <jepler> that's good then
[14:41:41] <jepler> > Given two integer values x and y, the (floor of the) average normally would be computed by (x+y)/2; unfortunately, this can yield incorrect results due to overflow. A very sneaky alternative is to use (x&y)+((x^y)/2).
[14:42:07] <jepler> huh, ^^ that's .. not intuitive
[14:42:52] <pcw_home> say what?
[14:45:27] <jepler> http://webcache.googleusercontent.com/search?q=cache:GdfhQPBQ1iAJ:aggregate.org/MAGIC/#Average%20of%20Integers
[14:48:02] <pcw_home> Thats full of all sorts of neat tricks
[14:53:29] <jepler> oh, it's "setsserial" that is not built for uspace
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[14:54:40] <pcw_home> Thats only needed for setting EEPROM constants and updating firmware on sserial remotes
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[15:05:14] <pcw_home> I can try the > 64 bit patch on monday
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[15:08:40] <jepler> it's probably not right in detail, but I think the basic idea is close to right
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[15:27:23] <KGB-linuxcnc> 03Jeff Epler 052.6 c5d6017 06linuxcnc 10src/rtapi/sim_common.h sim: Fix 32-bit truncation of rdtsc on x86_64 * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=c5d6017
[15:27:23] <KGB-linuxcnc> 03Jeff Epler 052.6 5c18f5a 06linuxcnc 10docs/man/man3/hal_parport.3hal docs: Fix cut&paste errors * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=5c18f5a
[15:27:23] <KGB-linuxcnc> 03Jeff Epler 052.6 e8d8465 06linuxcnc 10src/emc/task/taskmodule.cc task: silence a warning with gcc 4.8 + boost 1.55.0 * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=e8d8465
[15:27:25] <KGB-linuxcnc> 03Jeff Epler 052.6 9a9384a 06linuxcnc 10src/emc/task/taskmodule.cc task: safely format these messages * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=9a9384a
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[15:38:01] <atom1> what's the deb line to grab master?
[15:38:20] <atom1> i had to reinstall everything here
[15:39:05] <atom1> is it the 2.6 lines at builbot.linuxcnc.org ?
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[15:48:59] <atom1> nm...
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[16:10:51] <jepler> pcw_home: did you try 7i90 with uspace? It's one I ported but didn't (couldn't) test.
[16:12:01] <KGB-linuxcnc> 03Jeff Epler 05jepler/rtos-uspace-apis 1530584 06linuxcnc 60 commits pushed, 1022 files changed, 031145(+), 041037(-)
[16:13:15] <Tom_itx> where's libmodbus-dev located?
[16:13:20] <Tom_itx> trying to build master
[16:13:29] <jepler> rebased branch. new stuff: setsserial is built (not tested), a few warnings squashed
[16:13:39] <jepler> Tom_itx: it's a package that can be installed by the package manager (apt-get / synaptic)
[16:13:39] <Tom_itx> went to get libmodbus-dev and it returns... not found
[16:13:48] <Tom_itx> ok
[16:14:21] <Tom_itx> not in the package list
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[16:14:42] <jepler> what os version?
[16:14:50] <Tom_itx> from the live cd
[16:14:55] <Tom_itx> 10.04
[16:15:09] <Tom_itx> i had to reinstall everything.. so starting over here
[16:15:58] <jepler> have you done "apt-get update" since installing?
[16:16:23] <jepler> for 10.04, the package should come from linuxcnc.org
[16:16:33] <Tom_itx> i get a 'no public key' on the buildbot site
[16:17:11] <Tom_itx> still no luck
[16:17:34] <jepler> it's been a very long time since I used a system installed from the 10.04 live cd
[16:17:57] <jepler> you need to make sure the linuxcnc.org package server is in your lits
[16:17:59] <jepler> list
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[16:18:34] <jepler> deb
http://www.linuxcnc.org/ lucid base 2.6
[16:18:34] <jepler> deb-src
http://www.linuxcnc.org/ lucid base 2.6
[16:18:40] <jepler> err not quite
[16:18:51] <atom1> ahh it's pointing to 2.4
[16:19:12] <jepler> maybe it's linuxcnc.org/dists/ lucid base 2.6
[16:19:52] <atom1> http://www.linuxcnc.org/emc2 lucid base emc2.4 is what i have
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[16:20:33] <atom1> and added the buildbot stuff
[16:21:27] <jepler> well anyway, if you're not getting libmodbus-dev after apt-get update, then it's a problem with your sources.list lines
[16:21:45] <jepler> unfortunately I don't have the correct lines in my memory
[16:21:52] <atom1> np
[16:21:57] <atom1> i'll keep lookin
[16:23:32] <jepler> found a 10.04 vm
[16:23:34] <jepler> it has
[16:23:34] <jepler> ./sources.list:deb
http://linuxcnc.org lucid base linuxcnc2.5
[16:23:51] <jepler> and it can install package libmodbus-dev from linuxcnc.org
[16:24:18] <jepler> so remove /emc2 from the sources.list line
[16:24:40] <atom1> yeah i just found that
[16:26:47] <atom1> still didn't work
[16:27:44] <atom1> ok apt-get worked
[16:27:52] <atom1> not the package manager
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[16:30:50] <atom1> error: boost::python is required to build LinuxCNC
[16:30:59] <atom1> do you know whick package has that?
[16:35:51] <pcw_home> jepler: no I didn't, I just tested uspace-hm2-eth
[16:35:53] <pcw_home> I can try a 7I90 (EPP) on Monday
[16:36:51] <jepler> pcw_home: OK. If you do, and it doesn't work, let me know
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[16:37:11] <jepler> atom1: libboost-python-dev I think
[16:37:43] <jepler> looking in the file debian/control.in is often good for trying to figure out what packages are needed
[16:37:49] <jepler> just ignore the documentation-related ones
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[16:44:17] <atom1> thanks, that seemed to get it
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[18:06:56] <micges-dev> jepler: something special needed to run hm2_7i90 under uspace?
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[18:26:16] <jepler> micges-dev: no, it's just hardware I don't have to test
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[18:32:43] <micges-dev> jepler: hm2: loading Mesa HostMot2 driver version 0.15
[18:32:43] <micges-dev> hm2_7i90: dlopen: /home/x/PROJECTS/master-rt-preempt/rtlib/hm2_7i90.so: undefined symbol: rtapi_parport_get
[18:32:43] <micges-dev> core.hal:6: /home/x/PROJECTS/master-rt-preempt/bin/rtapi_app exited without becoming ready
[18:32:57] <micges-dev> loadrt hm2_7i90 ioaddr=0x378 epp_wide=1 config=""
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[18:34:50] <micges-dev> linux 3.12.16-rt25
[18:34:56] <micges-dev> bbl
[18:36:03] <jepler> hmm :( it looks like I managed to break 7i43 as well
[18:36:44] <micges-dev> got 7i90 setup ready, be back in 1h
[18:39:47] <KGB-linuxcnc> 03Jeff Epler 05jepler/rtos-uspace-apis 753d651 06linuxcnc 10src/rtapi/Submakefile 10src/rtapi/rtapi_parport.h 03src/rtapi/uspace_rtapi_parport.cc uspace: implement rtapi_parport * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=753d651
[18:39:47] <KGB-linuxcnc> 03Jeff Epler 05jepler/rtos-uspace-apis c59c7b8 06linuxcnc 10(9 files in 3 dirs) hal_parport: Build for uspace * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=c59c7b8
[18:39:47] <KGB-linuxcnc> 03Jeff Epler 05jepler/rtos-uspace-apis 8652403 06linuxcnc 10src/rtapi/uspace_rtapi_app.cc uspace: Allow the upper-bound value to be parenthesized * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=8652403
[18:39:49] <KGB-linuxcnc> 03Jeff Epler 05jepler/rtos-uspace-apis 58afb61 06linuxcnc 10src/rtapi/uspace_rtapi_app.cc uspace: Report the "corrupt" array type information * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=58afb61
[18:39:53] <KGB-linuxcnc> 03Jeff Epler 05jepler/rtos-uspace-apis fe417d5 06linuxcnc 10src/rtapi/uspace_common.h uspace: implement rtapi_delay_max for hm2_7i43 * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=fe417d5
[18:39:57] <KGB-linuxcnc> 03Jeff Epler 05jepler/rtos-uspace-apis 58d1e5f 06linuxcnc 10src/Makefile 10src/hal/drivers/mesa-hostmot2/hm2_7i43.c 10src/hal/drivers/mesa-hostmot2/hm2_7i90.c hostmot2: port 7i43 (tested) and 7i90 (untested) to uspace * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=58d1e5f
[18:40:02] <KGB-linuxcnc> 03Jeff Epler 05jepler/rtos-uspace-apis 6097b4f 06linuxcnc 10src/hal/drivers/mesa-hostmot2/hm2_7i43.c hm2_7i43: Automatically fall back to byte transfers * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=6097b4f
[18:40:06] <KGB-linuxcnc> 03Jeff Epler 05jepler/rtos-uspace-apis 9a737df 06linuxcnc 10src/Makefile 10src/hal/drivers/mesa-hostmot2/setsserial.c setsserial: port to uspace and enable (untested) * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=9a737df
[18:44:59] <CaptHindsight> ran 3.4.55 RTA1 on Mint Mate Debian for half a day and latency stayed <8K, I run the same kernel on Ubuntu Unity 12.04 and it's at 18K after 2 minutes, same kernel, same linuxcnc and RTAI repos, both are using the same Mesa (software rendering) driver
[18:52:13] <CaptHindsight> well same Mesa version shows up in glxinfo, I'll have to actually check how each distro made those packages to be sure it's the same source
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[18:56:32] <CaptHindsight> just FYI there are three packages that are generally missing from newer versions of Ubuntu or Mint that are needed to install Linuxcnc: libboost-python1.46.1, libgnomeprint and libgnomeprintui
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[19:07:10] <KGB-linuxcnc> 03Chris Morley 05new_pncconf 6ae7a4c 06linuxcnc 10src/emc/usr_intf/pncconf/pncconf.py pncconf -fix incompatibilty between MESA and LCNC XMLs * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=6ae7a4c
[19:07:11] <KGB-linuxcnc> 03Chris Morley 05new_pncconf d9e8ccb 06linuxcnc 10src/emc/usr_intf/pncconf/pncconf.py pncconf -cleanup code a bit * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=d9e8ccb
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[20:00:56] <Capn_Fish> Anybody know how long the BeagleBone Black version takes to build on the BBB? I made the mistake of doing "make clean"...
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[20:04:39] <pcw_home> you will find out (eventually) :-)
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[20:21:48] <fenugrec> in stepgen.c : make_pulses() ; when decrementing timer1 timer2 and timer3, wouldn't there be a small gain to be had by removing the ( timer > 0 ) check, like so :
http://www.diffchecker.com/lwtw32dz
[20:22:58] <fenugrec> we check for timerx > periodns right after; as I understand periodns is always >= 0, and (timer < 0 ) is meaningless and should never happen...
[20:23:29] <micges-dev> jepler: hm2_7i90 under uspace works
[20:39:40] <fenugrec> mhh come to think of it, it's almost not a gain after all... It's 2 instructions shorter (test ebx,ebx; jle _skip) when timerX > periodns, but 1 instruction longer when timerX==0 (mov ebx,0)
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[20:58:12] <jepler> nobody has tried to optimize linuxcnc components on the level of counting individual instructions. I don't doubt you'll find lots of places where writing slightly different C code might give slightly fewer instructions, but probably not enough of them to make more than 1% difference in the possible step rate
[20:58:32] <jepler> .. because that's almost always more due to hardware latency than the number of cycles spent in realtime code
[20:58:58] <jepler> so basically, it's worth fixing gross algorithmic problems (like avoiding division, or avoiding floating-point) but typically not worth it to eliminate a single register comparison
[20:59:17] <jepler> yes, periodns will always be >0
[20:59:43] <jepler> but so that a few functions can signal an error by returning a negative value, time periods are stored, passed, and returned as signed values
[21:00:51] <fenugrec> jepler: you're right; especially without doing any profiling it's probably not worth the trouble. I was expecting a slightly bigger effect in this case but "gcc -O" does an OK job as it is
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[21:38:16] <jepler> micges-dev: thanks
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[22:17:26] <cradek> Connection to the other side was lost in a non-clean fashion.
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[22:34:26] <CaptHindsight> on this test system Mint Mate Debian has better latency (<8K) with 3.4.55 RTAI then the LiveCD
[22:37:17] <CaptHindsight> quad Phenom II 2.8GHz and 780 chipset (gigabyte MA785GM-US2H)
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[22:43:56] <andypugh> cradek: Did yo get the chance to look at the G43.2 + remap config?
[22:44:16] <andypugh> I am not entirely sure whether it belongs under the “remap” tree.
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[22:45:48] <andypugh> I have also wondered if it might not be more generic if it included a more elaborate python segment that set g-code params for up to 4 “fields” of the T-word and (for completeness) each corresponding pocket number.
[22:46:29] <andypugh> I tried to make the Python as minimal as possible, puting all the “clever” in the G-code. But I am wondering if perhaps the inverse solution is better.
[22:47:18] <andypugh> Actally, not a complete inverse: give the G-code the info it needs to be even cleverer.
[22:51:17] <andypugh> The Python prologue can query the tool table. The G-code can’t. (AFAIK). It looks like every lathe uses 2-digit data fields. So we could simply pass params to the G-code called #<T1> #<T2> #<T3> #<T4> and (why not?) the corresponding pocket numbers for each #<P1>…. I think that means that the G-code sub would be all anyone needed to change to suit their own preference.
[22:52:30] <andypugh> <digression> Are lathe users unimaginative and resistant to change? I am much more relaxed on a lathe than a mill, but I seem unusual in being perfectly happy with M6 T3 G43 as my toolchange code.
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[23:39:34] <andypugh> Oh FFS! Aram thinks every system has exactly the same set of Signals in HAL. He is an imbecile and even Mach3 doesn’t deserve him.
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[23:51:46] <cradek> andypugh: I like how the smarts is in gcode, showing the integer division and mod. that seems the most user-customizable to me (you can parse T0102030405 that way if you want without changing the python, right?)
[23:51:58] <cradek> or T001002
[23:52:17] <cradek> I don't know much about the feelings of various users so I decline to comment about that :-)
[23:53:55] <andypugh> The only problem with the demo config is that you get no tool-table info, such as the pocket that corresponds to that tool number.
[23:54:18] <cradek> but for lathes that seems to be what makes 'em happy
[23:54:30] <andypugh> I suspect that the T0101 lathes don’t use pockets, but I don’t know that
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[23:54:49] <cradek> I guess it depends what your? our? goal is
[23:55:20] <cradek> my most specific goal is to do what that patch does but without hardcoding silly limitations
[23:55:46] <cradek> if the result is useful as an example for further customization, all the better
[23:56:02] <cradek> but you're doing it and I bet any of your answers is fine
[23:56:21] <andypugh> My goal is to stop superiorroll moaning. A bonus would be something that lets Tormach buyers upgrade to 2.6 seamlessly.
[23:56:24] <cradek> 99% of people will use your sample as-is and if it does what that patch does, perfect
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[23:56:37] <cradek> heh
[23:56:46] <cradek> I'm being called to dinner
[23:56:57] <cradek> I trust you - do what you think is best
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[23:57:20] <cradek> (stopping moaning is a great goal)
[23:57:25] <cradek> bbl, and thanks
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