Re: [racket-users] Racket Web servlet performance benchmarked and compared

2017-09-09 Thread Jon Zeppieri
On Sat, Sep 9, 2017 at 8:05 PM, Jon Zeppieri wrote: > On Sat, Sep 9, 2017 at 7:52 PM, Jon Zeppieri wrote: >> >> It does seem odd, though, that the server seems to *favor* sending >> ACKs to clients it can't service over responding to the ones it can. > > No, there has to be something else wrong.

Re: [racket-users] Racket Web servlet performance benchmarked and compared

2017-09-09 Thread Jon Zeppieri
On Sat, Sep 9, 2017 at 7:52 PM, Jon Zeppieri wrote: > > It does seem odd, though, that the server seems to *favor* sending > ACKs to clients it can't service over responding to the ones it can. No, there has to be something else wrong. The tcpdump output shows significant gaps in time while this

Re: [racket-users] Racket Web servlet performance benchmarked and compared

2017-09-09 Thread Jon Zeppieri
On Sat, Sep 9, 2017 at 6:25 PM, Jon Zeppieri wrote: > When I ran experiments similar to yours on OS X I saw some odd > scheduling behavior. It looks like after roughly 2^14 requests are > `accept`-ed, there's a *long* delay before the next one succeeds. It > appears that the program is `poll`-ing,

Re: [racket-users] Racket Web servlet performance benchmarked and compared

2017-09-09 Thread Jon Zeppieri
When I ran experiments similar to yours on OS X I saw some odd scheduling behavior. It looks like after roughly 2^14 requests are `accept`-ed, there's a *long* delay before the next one succeeds. It appears that the program is `poll`-ing, waiting for activity, but, for whatever reason, it doesn't r

[racket-users] Strange gray lines in DrRacket editor

2017-09-09 Thread jaroslaw . modry
Recently I installed racket 6.10 (Windows version) on my new laptop (OS is Windows 10 Creators Update) and I noticed strange gray boxes when writing programs in the DrRacket editor (see picture attached). I assume it's related to my DPI settings which is set to 125% in the Display settings dia

Re: [racket-users] Re: Racket Web servlet performance benchmarked and compared

2017-09-09 Thread Neil Van Dyke
dbohdan wrote on 09/09/2017 02:40 PM: When I limit the memory usage in racket-custom to the total RAM on the VPS minus what the OS uses (through custodian-limit-memory) Racket quits with an out of memory error at the point when it would be killed by the OS. racket-scgi seems to behave the same,

[racket-users] Strange binding arrows in #lang web-server

2017-09-09 Thread Philip McGrath
I've been noticing some strange binding arrows in DrRacket when using #lang web-server. In the following (obviously contrived) example, hovering over the first use of `term` shows an arrow to the second use, hovering over the second use of `term` shows an arrow from the first use and an arrow to th

Re: [racket-users] Re: Racket Web servlet performance benchmarked and compared

2017-09-09 Thread dbohdan
On Friday, September 8, 2017 at 1:09:19 PM UTC+3, Jay McCarthy wrote: > Wow! Thanks for all of this work. It is really interesting to see how > different the performance is on the Internet workload! Once again, you're welcome! See my reply to Neil Van Dyke for some reasoning about the Internet wo

Re: [racket-users] Re: Racket Web servlet performance benchmarked and compared

2017-09-09 Thread dbohdan
On Friday, September 8, 2017 at 4:29:34 PM UTC+3, Neil Van Dyke wrote: > dbohdan wrote on 09/07/2017 04:52 PM: > > The #/sec for each implementation are suspiciously similar. I wonder > whether they're limited by something like an accounting limit imposed on > the VPS (such as network-bytes-per