This is a fri through mon inclusive. The sat was actually the day of startup school.

Orange = requests/sec; black = memory used; red = % time spent in gc; blue = median msec to serve an item page; green = median msec to serve the frontpage. The last two are unnaturally spiky because I use a very narrow window (because we use the same data to to drive our Leftronic screen at YC). So the blue spikes don't represent anything that would have been observable to users.

The slowly rising gc percentage (red) is a sign of memory leaks. They used to be a lot worse before Rtm finally tracked down the main culprit this summer.

We're now getting a bit over 900k page views per day.

How many unique visitors?

We now get around 75k uniques on a weekday.

http://news.ycombinator.com/item?id=1152389

Looks like we're getting close to doubling in uniques, compared to 45K 8 months ago.

any plans for monetizing ?

HN is already monetized, albeit indirectly, through discrete and relevant references to YC products. For example the reference to Leftronic in this post.

I'm not usually one to correct grammar, but discrete and discreet mean very different things.

HN is sort of a loss leader for ycombinator. Free advertising for all the YC comings and goings. HN is the leader in mindshare amongst those interested in startups, startup technology and startup culture and (obviously) startup news.

The slowly rising gc percentage (red) is a sign of memory leaks.

So do you reboot regularly, or what?

I'd have to restart the server once a week or so if I didn't end up doing it more often anyway because of releases.

Does HN run on a single machine??

I don't see yellow, but I do see an orange. Was that a typo, or is my monitor seriously mis-calibrated?

Google Charts also allows you to set a legend. It really should be part of the graph.

These graphs are just to tell me if anything is going wrong with the server. They're not really intended for anyone else to see.

E.g. this is the graph at this moment: http://chart.apis.google.com/chart?cht=ls&chco=ff7700,00...

Though fierarul's comment leads to a natural question. The original comment explaining the graph is really necessary for the link to make sense. Explaining the graph in a comment seems to break the (apparent) convention of submissions being self-contained.

I thought the reason for disallowing both a URL and text in a submission was to avoid this. Though, if a submission that requires a comment is acceptable, why not allow submitting both a URL and text?

There is a difference. A comment is voted up at the discretion of the users, while text associated with the url would be displayed at the top no matter what. Which would mean the first person who submitted a link could essentially make their comment upon it always be the top one, and define the discussion.

By posting the chart here, I would assume you intended for others to see it, no?

How much did HN grow in the last year or so?

What was the original memory leak?

So either a) hackers work less on Saturdays and Sundays or b) hackers work more on things they're REALLY INTERESTED IN on Saturdays and Sundays ;)

In "The Hacker Ethic", there is an allegory used describing how hackers work that uses Sundays and Fridays as the example:

http://preview.tinyurl.com/2ecd9b8 (Google Books)

http://slashdot.org/books/01/03/06/1751250.shtml (Slashdot review)

How substantially modified is Hacker News code base from news.arc in arc 3.1?

What parts have been modified / extended?