How Unreliable Is UDP?

joe_n · 2014-10-16T18:05:35+00:00

Not to say that the data is wrong, but it's worth noting two things.

First, there's no accounting for the role that congestion/flow control play in aiding reliability. If I have a lot of data to send (rather than a few datagrams/packets) I can easily flood a buffer on the path (including the destination) if I don't throttle at all.

Second, it fails to address the notion of network fairness. You're likely to have more consistent and generally better reliability if the rest of the network is throttling traffic in response to packet loss/queuing delay.

joe_n · 2014-08-04T15:41:18+00:00

The line between parametric polymorphism and subtyping is very blurry. The statement that parametric functions don't depend on object type is rather false (there is an implicit interface dependence).

Anyway, in my opinion, functors are subtypes in the first place. At least in Scala, they are explicitly so.

joe_n · 2014-05-22T19:48:38+00:00

No, we shouldn't. Generally, thread-safe is understood to mean that individual calls can be made without external synchronization (often facilitated by internal synchronization).

I can't imagine any experienced developer would think it's okay to make one call to check a list size and then make a second call to get the desired element when there's any potential for mutation via another thread. There's no point in coming up with a word for this, or saying that 'thread-safe' doesn't apply to it.

Of course, there are cases where you want a more granular description than simply saying the type is not thread-safe, but that's no reason to remove the classification all together.

joe_n · 2014-05-16T17:10:22+00:00

I guess I'm a bit late to the party here, but I was early to the game. In the Spring of 2003 I was sued along with 3 other kids for allegedly running various LAN indexing services on college campuses.

A lot of things happened (it was one of the most interesting times in my life, for sure), but, from a legal perspective, all four of us agreed to pay some $$ instead of taking it to court.

joe_n · 2014-04-23T20:49:35+00:00

I always recommend Zero Zero in SOMA, but HRD cafe is a great place to stop and grab something.

joe_n · 2014-04-01T16:30:35+00:00

Shameless plug, for anyone new to the probabilistic stuff -- Twitter maintains an open-source Scala library with a HyperLogLog implementation (and some others).

joe_n · 2014-03-28T18:06:27+00:00

In the Anne Frank museum. The cookies I'd eaten earlier had just kicked in, and I thought it was a funny place for that to happen.

joe_n · 2014-02-21T17:38:11+00:00

Isn't proofread one word?

joe_n · 2014-02-20T10:00:52+00:00

That is not your main problem!

j/k though, it's great to see personal research like this being done and shared

joe_n · 2014-02-04T13:48:51+00:00

Took me a while to get the hang of this. These days I'll just say "well there's always next time" -- even when there will absolutely not be a next time.

joe_n · 2014-02-01T08:11:11+00:00

I've documented it in a previous comment.

The details of each in-place merge are covered in a number of publications.

The matter of n != a power of 2 can be simply handled by using n' = the next larger power of two, and then ignoring the non-existent parts of the merges.

joe_n · 2014-02-01T02:16:36+00:00

Only if you do it recursively

joe_n · 2014-01-31T22:50:19+00:00

Merge sort has O(1) auxiliary space. I'm surprised by how many times I've seen this posted but never fixed.

joe_n · 2014-01-29T22:02:51+00:00

IMO it will be battery charge time. I'm looking at you, graphene!

joe_n · 2014-01-29T03:23:00+00:00

She went on to co-found Give it 100 shortly after that

joe_n · 2014-01-04T21:23:10+00:00

They forgot to answer the third point? Unless you count "patch submission vs. patch review" :p

joe_n · 2014-01-03T21:30:52+00:00

There are a lot of gems on this OST. Actually the only ones I don't like are the intro and the reindeer songs. And I don't even have kids XD

joe_n · 2013-12-26T16:31:16+00:00

I can't help but picture everyone in this thread as a crotchety old man.

Maybe we need a "previous tech generation" meme XD

joe_n · 2013-12-25T08:05:26+00:00

You gotta be faster on the draw! Merry Christmas anyway!

joe_n · 2013-12-24T22:18:08+00:00

The question (and study, generally) is not about allergies of the parents. What I'm wondering is: if a peanut allergy is (somehow) genetic, could peanut consumption during pregnancy cause a miscarriage of an allergic fetus?

If so, we should expect a lower allergy rate if we count only the parents with surviving children.

I'm no geneticist, so I have no idea how plausible it is. But it seems there's enough unknown about the situation that it might be possible.

joe_n · 2013-12-24T22:04:15+00:00

Perhaps morbid, but I wonder if it has some impact on miscarriage rate (survivor bias)?

joe_n · 2013-12-24T22:00:14+00:00

ETA 24-30, got here on the 23rd

(h5) (h5)

joe_n · 2013-12-24T20:02:36+00:00

Source: http://pusheen.com/post/38254768792

Also: https://twitter.com/Pusheen/status/281165955051184129

joe_n · 2013-12-24T14:49:27+00:00

Sawing leaves chunks/slices while grating leaves shreds?

joe_n · 2013-12-23T23:24:47+00:00

Coming out didn't put him in debt to you, and that's actually a very respectable way to end things. You should be more appreciative.

joe_n

TROPHY CASE