Re: [racket-users] racket on openwrt
This needs a lot of testing and probably some more work, but looks like we can probably have an official OpenWRT package of Racket. I now have Racket at least partly running (pending testing) on Netgear WNDR3700v4 home WiFi router hardware, under the current official stable OpenWRT image, at the same time as the full OpenWRT router functionality in that official image. This Racket is installed from package `racket_6.1.1-1_ar71xx.ipk`, which is built using the official OpenWRT package process. I haven't had to do anything too hard yet; looks like others already did the hard parts. So far, I've only had to craft an OpenWRT `Makefile` for Racket, not make any changes to the Racket source. That it got this far in just 1-2 person-days is a credit to Matthew and others, for making the Racket source tree already cross-compile well, and already having whatever low-level support for this MIPS-ish architecture. Tony Garnock-Jones previously got Racket 5.x working on an even more impoverished OpenWRT device. Besides needing testing, I also haven't seen how well a real Racket application program can be made to run with this amount of RAM. Even if this tests OK, that doesn't mean that all OpenWRT devices can even minimally run Racket. The particular device I'm using happens to be 128MB RAM and 128MB NAND flash, which is more than most OpenWRT devices, and might be the bare minimum you want for Racket. You might be able to fit Racket on a device with 64MB flash, with aggressive trimming of OpenWRT, or you could move the disk space offboard if device has USB, but squeezing a real Racket-based application into less RAM would be tricky.) I don't know how soon I'll be doing more work on this. This is a low priority, and I might wait until the new core Racket build changes I believe are coming in 6.2, anyway (since there will be decisions to make about how to handle Racket's own packages within OpenWRT packages). BusyBox v1.22.1 (2014-09-20 22:31:09 CEST) built-in shell (ash) Enter 'help' for a list of built-in commands. ___ __ | |.-.-.-.| | | |..| |_ | - || _ | -__| || | | || _|| _| |___|| __|_|__|__||||__| || |__| W I R E L E S S F R E E D O M - BARRIER BREAKER (14.07, r42625) - * 1/2 oz Galliano Pour all ingredients into * 4 oz cold Coffeean irish coffee mug filled * 1 1/2 oz Dark Rum with crushed ice. Stir. * 2 tsp. Creme de Cacao - root@OpenWrt:~# racket Welcome to Racket v6.1.1. (+ 1 2) 3 Top while above is running (with the unnecessary .ipk file in tmpfs adding to RAM usage): Mem: 76964K used, 49056K free, 0K shrd, 2260K buff, 33720K cached CPU: 1% usr 0% sys 0% nic 96% idle 0% io 0% irq 1% sirq Load average: 0.29 0.24 0.17 1/39 1476 PID PPID USER STAT VSZ %VSZ %CPU COMMAND 1476 1470 root S27860 22% 1% racket BTW, the barrier breaker beverage recipe shown in the login banner is stock OpenWRT version-naming stuff. People can remove that from their own devices; I'm just keeping this particular test device as stock as possible. Neil V. -- You received this message because you are subscribed to the Google Groups Racket Users group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[racket-users] racket on openwrt
Has anyone already made an OpenWRT `.ipk` package of Racket? Neil V. -- You received this message because you are subscribed to the Google Groups Racket Users group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [racket-users] racket on openwrt devices
On 2015-05-02 2:29 PM, Neil Van Dyke wrote: What's the current viability of running Racket on a small OpenWRT device? (Anything new, such as due to the recent modularization of the core?) Nothing that I know of since 2011ish. The smaller core might make it a little easier to assemble a minimal set of collections. For example of specs of a popular beefy retail home WiFi router that runs OpenWRT well: Processor: Atheros AR7161 rev 2 680MHz (MIPS arch) RAM: 64MiB Flash: 16MiB Nice. Hmm, that amount of nonvolatile storage will be a challenge. Racket will run in 64MB RAM on a machine of that class, though not well, if my intuitions from 2011 still hold. (Last time I ran Racket on OpenWRT, I was using a Netgear WNDR3700v2.) Tony -- You received this message because you are subscribed to the Google Groups Racket Users group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [racket-users] racket on openwrt devices
Tony Garnock-Jones wrote on 05/03/2015 12:55 PM: On 2015-05-02 2:29 PM, Neil Van Dyke wrote: What's the current viability of running Racket on a small OpenWRT device? (Anything new, such as due to the recent modularization of the core?) Nothing that I know of since 2011ish. The smaller core might make it a little easier to assemble a minimal set of collections. OK, thanks, Tony. I'll have to give this a try in a week or two. (Last time I ran Racket on OpenWRT, I was using a Netgear WNDR3700v2.) I have a collection of these and similar WNDRs (my home office network is run by two 3700v2 and a 3800, running OpenWRT). For Racket, I'll probably try a 3700v4 or 4300v1 first, since they're 128 RAM and 128 NAND flash, albeit with a different SoC with lower CPU clock rate. I don't want to rely on USB Storage for this project. (Aside: A challenge for an open source project that you want large numbers of people to be able to adopt grassroots-style is to find router model(s) with sufficient specs, and that run OpenWRT well, and yet are still easily available for purchase online and at big-box retailers. Additionally, vendors like Netgear and Linksys often replace the product guts of a model with very different hardware, without changing the model number; so, someone ordering a WNDR3700 online could be getting any of 4+ different devices, with widely varying specs, and some of which don't run OpenWRT. Some open source projects can also work on Raspberry Pi devices, but sometimes you need the NICs/radios/switch hardware of a cheap router anyway, so you might as well do everything in one appliance box. A soho router is more polished and less expensive than a RasPi with a bunch of daughterboards and USB hubs and devices hanging off of it precariously.) Neil V. -- You received this message because you are subscribed to the Google Groups Racket Users group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [racket-users] racket on openwrt devices
Tony Garnock-Jones wrote on 05/03/2015 03:10 PM: On 2015-05-03 2:50 PM, Neil Van Dyke wrote: 128 RAM and 128 NAND flash, albeit with a different SoC with lower CPU clock rate. I don't want to rely on USB Storage for this project. I should mention also that I couldn't do anything useful with Racket 5.x (as it was at the time) on the WNDR3700v2 without using a swap file on a USB stick (!). Simply not enough RAM or storage for Racket. Very good to know. Guess I'll just target the 128MB RAM devices, and not even bother with 64MB. This weekend I'm writing a (hopefully) very-small-footprint HTTP-serving module in pure Racket. Neil V. -- You received this message because you are subscribed to the Google Groups Racket Users group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [racket-users] racket on openwrt devices
On 2015-05-03 2:50 PM, Neil Van Dyke wrote: 128 RAM and 128 NAND flash, albeit with a different SoC with lower CPU clock rate. I don't want to rely on USB Storage for this project. I should mention also that I couldn't do anything useful with Racket 5.x (as it was at the time) on the WNDR3700v2 without using a swap file on a USB stick (!). Simply not enough RAM or storage for Racket. Tony -- You received this message because you are subscribed to the Google Groups Racket Users group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[racket-users] racket on openwrt devices
What's the current viability of running Racket on a small OpenWRT device? (Anything new, such as due to the recent modularization of the core?) For example of specs of a popular beefy retail home WiFi router that runs OpenWRT well: Processor: Atheros AR7161 rev 2 680MHz (MIPS arch) RAM: 64MiB Flash: 16MiB Getting that up as high as 128MB RAM and 64MB-128MB flash would probably be doable, but fitting Racket on the device within the above specs is strongly preferable, for open source projects. (In the open source application I have in mind, Racket would leave the TCP/IP to OpenWRT and the SoC, and spend most of its time doing a different kind of protocol through a special USB device.) Neil V. -- You received this message because you are subscribed to the Google Groups Racket Users group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
