Re: [AOLSERVER] Mention of AOLserver in Feb 2004 Linux Journal.
Mathopd will have higher latency as an image server, because it is single threaded and doesn't do asynchronous disk I/O. So on a high-end server, the number of IOs/sec it can generate is limited. AS does not have this problem since it is multi-threaded. However, mathopd services requests in a very fair manner: in an ab test, the difference between minimum request time and maximum request time is very small. On AS, this is not the case, and there are relatively large variances in request service time, indicating that some threads are being starved. This could be an AS design issue or an OS scheduling/resource issue - dunno. Mathopd is definitely the faster engine, but its design limits its capacity. Mathopd with asynchronous disk I/O would be awesome. Mathopd: Concurrency Level: 15 Time taken for tests: 0.976 seconds Complete requests: 1 Failed requests:0 Total transferred: 2100210 bytes HTML transferred: 450045 bytes Requests per second:10245.90 Transfer rate: 2151.85 kb/s received Connnection Times (ms) min avg max Connect:0 0 1 Processing: 0 0 1 Total: 0 0 2 AOLServer 3.4: - Concurrency Level: 15 Time taken for tests: 1.822 seconds Complete requests: 1 Failed requests:0 Total transferred: 255 bytes HTML transferred: 45 bytes Requests per second:5488.47 Transfer rate: 1399.56 kb/s received Connnection Times (ms) min avg max Connect:0 0 2 Processing: 0 1 210 Total: 0 1 212 On Thu, Jan 08, 2004 at 09:15:49PM -0500, Lamar Owen wrote: There is a good, if inconspicuous, mention of AOLserver in the Feb LJ. On page 46, in the feature on the Magnatune record label, the statement is made: Apache 2 running PHP and OpenSSL serves all the HTML pages. When Magnatune was Slashdotted, I found that Apache could not keep up with the load for images. All HTTP image requests now are off-loaded to AOLserver, which had the lowest latency to serve images at high speeds. Later: Mathopd [which they use to serve the very large streaming audio files] has more latency than AOLserver, which is why we don't use it to serve small images. Why would anyone care about the latency of serving small images? Last I heard a human being viewing images in a browser is not exactly senstive to small latencies the way a parellel MPI program might be, after all. Or are they talking about absurdly large latency differences between Mathopd and AOLserver, like several seconds or more? -- Andrew Piskorski [EMAIL PROTECTED] http://www.piskorski.com/ -- AOLserver - http://www.aolserver.com/ -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
[AOLSERVER] Mention of AOLserver in Feb 2004 Linux Journal.
There is a good, if inconspicuous, mention of AOLserver in the Feb LJ. On page 46, in the feature on the Magnatune record label, the statement is made: Apache 2 running PHP and OpenSSL serves all the HTML pages. When Magnatune was Slashdotted, I found that Apache could not keep up with the load for images. All HTTP image requests now are off-loaded to AOLserver, which had the lowest latency to serve images at high speeds. Later: Mathopd [which they use to serve the very large streaming audio files] has more latency than AOLserver, which is why we don't use it to serve small images. Wow, somebody who really uses the right tool for each job. Apache for the HTML and PHP stuff, AOLserver for machine-gunning images out, and Mathopd for serving very large files at high speeds. But it is a NICE mention of AOLserver. -- Lamar Owen Director of Information Technology Pisgah Astronomical Research Institute 1 PARI Drive Rosman, NC 28772 (828)862-5554 www.pari.edu -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Mention of AOLserver in Feb 2004 Linux Journal.
On 2004.01.08, Lamar Owen [EMAIL PROTECTED] wrote: Wow, somebody who really uses the right tool for each job. Apache for the HTML and PHP stuff, AOLserver for machine-gunning images out, and Mathopd for serving very large files at high speeds. I assume that first sentence was dripping with sarcasm ... because the irony is that AOL itself doesn't use AOLserver for serving images. *snicker* But yeah, it *is* nice to see AOLserver get positive press. Yay. -- Dossy -- Dossy Shiobara mail: [EMAIL PROTECTED] Panoptic Computer Network web: http://www.panoptic.com/ He realized the fastest way to change is to laugh at your own folly -- then you can let go and quickly move on. (p. 70) -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Mention of AOLserver in Feb 2004 Linux Journal.
On Thu, Jan 08, 2004 at 09:15:49PM -0500, Lamar Owen wrote: There is a good, if inconspicuous, mention of AOLserver in the Feb LJ. On page 46, in the feature on the Magnatune record label, the statement is made: Apache 2 running PHP and OpenSSL serves all the HTML pages. When Magnatune was Slashdotted, I found that Apache could not keep up with the load for images. All HTTP image requests now are off-loaded to AOLserver, which had the lowest latency to serve images at high speeds. Later: Mathopd [which they use to serve the very large streaming audio files] has more latency than AOLserver, which is why we don't use it to serve small images. Why would anyone care about the latency of serving small images? Last I heard a human being viewing images in a browser is not exactly senstive to small latencies the way a parellel MPI program might be, after all. Or are they talking about absurdly large latency differences between Mathopd and AOLserver, like several seconds or more? -- Andrew Piskorski [EMAIL PROTECTED] http://www.piskorski.com/ -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
