-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Jerry,
On 7/12/13 2:16 PM, Jerry Lampi wrote: > When we switched from tomcat 6.0.35 to 6.0.36, the initial load of > our sign on page became extremely slow. In 6.0.35, it would load > in about 2 seconds; in 6.0.36, it loads in about 60 seconds. Can you be more specific? Is it the "sign-in page" resource that takes 60-seconds to load, or do you mean the sign-in page plus all of its associated resources (graphics, css, applets, etc.)? > Our environment is an IBM mainframe running z/OS. Tomcat runs > under USS (Unix System Services). The JVM version is java version > "1.6.0" Java(TM) SE Runtime Environment (build > pmz3160sr13-20130207_01(SR13)). > > When we remove the > protocol="org.apache.coyote.http11.Http11NioProtocol" from the > server.xml, the page loads in about 2 seconds -- the same a tomcat > version 6.0.35. Is this over SSL or not? Does every page-load take 60-seconds or only the first time? What about other pages? > So I have narrowed this down to one configuration change. We need > to have NIO enabled, as we use Netty to do some of our IO; > therefore, leaving the option disabled is not possible for us. > > I ran Wireshark against 6.0.35 and 6.0.36 with NIO enabled hoping > to see a large discrepancy in the number of packets sent, but the > packet counts were very similar. > > I ran Fiddler and did see that files over 50KB in size were the > slow ones; oddly, jar files (we have a swing applet on our sign on > page) that were much larger than the slower .gif and .js files, > were served very quickly. Are you using compression of any kind? Do you have sendFile enabled? - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJR4FiiAAoJEBzwKT+lPKRY/M4P/2Fxe5mLTFDAYcn+uMZKolfk xXx5aWO/aFwDiwd/nqsQ9SujtqcuX5XYMD3vb8o1ORUaUIxaQyYZUVQ5sKoxWZHi lzHgsagIu2wp2eSojvqCKu4CU0onOmKGt6EofMH5Gj4Lx0njtfozgi8Pdn/pT8j3 YiyjBUUbF2iPDbWREixhp8L+HXqwoRJ3Fdxpe/XLBuxpgD+bCAq6THpZgWUhZi5c 16rGZDCM/THeWhYmKKq+uc+QkRYwf7v3KrS7uFxju3IiAFH4oMWX7Cn9T2rM624m y2Zkvxbdn3mBLnebRXXMbUg2iIOWuGx4Wr9ccuqixR3QTWZiJrsFstBzptiH2n6i z4rGAuvoReYyTYnusZ2BxVndldtFK18w5TfmoAkNzVCrPwgdvfKijqZB/V/B0mK5 /C/xPQS4oYX5DoAuRjiqgiA8p6pDxkcEt7CvEaNoNONleRf4FcLOBqcKXTkc/dzP BiZ/C5CQGdCn2huiAcWn7oqfvUIr+1O+LCR05By7frLDhMDXMMe0IyPNTMKrHxUx l0rSqtq6w9+RjSTWHhiNnYL7t4zSpI/Zjm7ZWsfQhyVCgy6BUO0ksoseGPjQcDm2 0rNZPvxfWNLIXf1i9zaj+tW8FU/LROrzSgnMTS2fPlb47aXNkI6rQgHzELAYD28q q3row5rJg/vx4apOBICY =29Jo -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
