-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 David,
On 7/14/16 5:37 PM, David Kerber wrote: > On 7/14/2016 1:41 PM, André Warnier (tomcat) wrote: >> Hi Java GC gurus. >> >> I am coming for a bit of expert advice, not for a problem. >> >> At some customer site, some applications appear to react >> somewhat slowly sometimes, although these are not very heavy >> applications, and traffic on the site is also not very high. >> >> Amog several other things I'm looking at, wondering if this might >> have something to do with Java/Tomcat running out of memory, and >> perhaps doing excessive GC's, I set up GC logging. Below I am >> pasting that small Java GC log. This is running tomcat 6 still, >> the java versions and tomcat JVM relevant switches are shown in >> the log. I am starting the tomcat JVM with "-Xms1024M -Xmx1024M", >> and no other non-default settings regarding memory management or >> GC type. >> >> I take it that in the log below, the first number on the left is >> a timestamp in "seconds , thousands of a second". > > What version of java are you running under? Since you're running a > very old Tomcat version, you might be running an old java too, and > Java itself has had some significant performance improvements over > the years. Good news! I have obtained Pid's crystal ball. It says: Java HotSpot(TM) 64-Bit Server VM (25.51-b03) for linux-amd64 JRE (1.8.0_51-b16), built on Jun 8 2015 19:28:07 by "java_re" with gcc 4.3.0 20080428 (Red Hat 4.3.0-8) (Note that the first time I asked it, it said "Ask Again Later". This was the second response.) But unfortunately, I am bound by the same rules as Pid was: we only get to use it once every decade. So I guess maybe it was a waste this time. - -chris -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAleIP8kACgkQ9CaO5/Lv0PBI5wCeJST3bGdh4IPVz3RxWdmOInkg UEMAmwSLVsQJwfy6/xi4paFrATt0F6ts =QKX+ -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
