lrizzo

8 ms·

1.
by lrizzo 2mo ago
same as in real life?
2.
Fix the light guide in a laser meter(lettieri.iet.unipi.it)
9 points by lrizzo 2y ago|1 comments
3.
Fix the light guide in a laser meter(lettieri.iet.unipi.it)
9 points by lrizzo 2y ago|0 comments
4.
by lrizzo 5y ago
I think there are two different use cases: - measurement at thread level (top and the like) should report instructions retired per unit of time, not %CPU. We want to know how much work is being done. The explanation on why so much
5.
Lr_cstats, collect and report hi-res histograms in multi-threaded programs(github.com)
1 points by lrizzo 5y ago|0 comments
6.
Lr_cstats, collect and report hi-res histograms in multi-threaded programs(github.com)
1 points by lrizzo 5y ago|0 comments
7.
by lrizzo 6y ago
Almost 10 years ago I wrote sttp http://info.iet.unipi.it/~luigi/sttp/ plain javascript + markdown variation, allows receivers to sync with the presenter using AJAX (that was the name, at the time ?) long polls. 2
8.
by lrizzo 6y ago
>> "With so many people and students around the world working from home, we really need some easy to deploy shared whiteboard solution. This is especially important for pre-college students who may not have access to high end har
9.
by lrizzo 6y ago
I believe it is either "force portrait" or "autorotate", there is no "force landscape".
10.
Poor man's document camera for videoconference(info.iet.unipi.it)
205 points by lrizzo 6y ago|56 comments
11.
by lrizzo 7y ago
I have two links related to tiled window management: The links are for WM configurations that let you move or resize windows keeping the corners on a configurable grid: [1] https://github.com/luigirizzo/lrtile-chrome (
12.
by lrizzo 7y ago
I have been using Spectacle for ages (with a custom javascript config, another post...). The problem is, Spectacle uses a 32bit API that is scheduled to go away and I am afraid that at some point (or 10.15 already?) it will stop working.
13.
Recover HD Using a Magnet(info.iet.unipi.it)
270 points by lrizzo 7y ago|85 comments
14.
by lrizzo 9y ago
To be precise zfec uses Vandermonde codes and it is derived from my old fec library from 1996-97. See http://info.iet.unipi.it/~luigi/research.html#fec (in 90's web style).
15.
by lrizzo 10y ago
Of all the problems you can have with this setting, brightness is not one of them. I have been using 4k 40" tvs and monitors with OSX and FreeBSD/linux for over 2 years now and overall I am quite happy with the choice. I wouldn&#x
16.
by lrizzo 11y ago
(OP/author here) I think you should have asked before changing the URL. The original URL pointed to the correct repository and had up to date performance numbers. Now it only points to the paper which is has stale information on both.
17.
by lrizzo 11y ago
and the mismatch between the number in the pdf and the one in the manpage/mail is due to subsequent optimizations.
18.
Announcing NMREPLAY, a netmap based pcap player(lists.freebsd.org)
3 points by lrizzo 11y ago|0 comments
19.
TLEM: very high speed link emulation [pdf](lists.freebsd.org)
23 points by lrizzo 11y ago|5 comments
20.
by lrizzo 11y ago
I really don't understand why for this use case people do not use a third wheel and save the energy consumed to stand still with self balancing. Not just this segway, also the double robot (the latter, at least, can claim aesthetic mot
21.
by lrizzo 11y ago
(netmap author here) I prefer to define netmap as a "network stack bypass" scheme because we use as much as possible of the OS -- all the things it does well, we do not want to reinvent. Device drivers, system calls, synchronizati
22.
The netmap framework now also runs on Windows(github.com)
1 points by lrizzo 11y ago|0 comments
23.
by lrizzo 12y ago
Speaking of screen size, having used it i confirm that 39-40" is what i find the minimum acceptable size for 4K if you are not running in HiDPI mode. It corresponds to 1080p at 20" which (which to my 50y eyes is almost below the t
24.
by lrizzo 12y ago
I have tried 4K@30Hz using HDMI on five different TVs (not monitors): Seiki 39" US, Seiki 39" UK (US and UK modes are different), Hisense 42K680, Samsung UE40HU6900DX, LG 40UB800 (the latter three are in Italy and seem available a
25.
by lrizzo 12y ago
I can't comment on HFT because I have no experience on that, and their focus is latency rather than throughput. For the latter (which matters in routers, for instance), netmap runs on everything (either natively or with some emulation)
26.
by lrizzo 12y ago
netsend and other apps used in that comparison were not rate limited. Surely that test only measures system's overheads, but i put that disclaimer very clearly in all papers and talks (btw "which it isn't" suggests that
27.
Netmap pipes(svnweb.freebsd.org)
1 points by lrizzo 13y ago|0 comments
28.
Mathquill: WYSIWYG math with only HTML, CSS and JS(mathquill.com)
1 points by lrizzo 13y ago|0 comments
29.
by lrizzo 13y ago
I really wish i could find a use for the chromebooks for my family, but i failed. This one seems similar to the samsung chromebook, which i tried for a while (also lending it to mother, sister, children) but we all found it basically useles
30.
by lrizzo 13y ago
what i really miss in most (all ?) of these frameworks is an embedded markup language (markdown or variants), so that one does not have to bother with html in order to create lists, fonts, tables etc. In my own "sttp" tool, most of the java

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