Re: [Carbon-dev] Minimum memory for carbon-3.2.0 products
On Mon, Jun 6, 2011 at 10:08 AM, Hiranya Jayathilaka hira...@wso2.comwrote: On Mon, Jun 6, 2011 at 10:02 AM, Charitha Kankanamge chari...@wso2.comwrote: On Mon, Jun 6, 2011 at 9:46 AM, Hiranya Jayathilaka hira...@wso2.comwrote: On Mon, Jun 6, 2011 at 8:48 AM, Charitha Kankanamge chari...@wso2.comwrote: Folks, Our products consume ~600-700 MB of memory (we noticed this by checking the free memory after the server is started), however the release docs of most of the products says the minimum memory requirement as 256MB, which is totally wrong. G-reg docs correctly mention that it is 1G. Therefore, please update all the release docs accordingly. The startup script only allows a max heap size of 512 MB (which is good enough for most cases - production systems may need more memory depending on the load). So how can the server consume 600-700 MB? Have you increased the allocated heap size? No I did not. I just checked the free memory of my machine before and after server startup. I did not do any profiling or any tool based analysis. We may need to do that and figure out the exact memory growth. Then we have to conclude that it's not the Carbon server which is taking up all this memory. It is the JVM + OS + all other applications running on the machine. We need to use jconsole to figure out the exact amount of memory consumed by the JVM. I agree that memory usage has slightly increased in Carbon 3.2.0, but it cannot grow up to 600-700 MB range unless the server is heavily loaded. Even in that case an OOM will occur and server should crash because our default JVM settings do not let the heap grow beyond 512MB. +1 Thanks, Sameera Thanks, Hiranya Similarly, I noticed that ~200-250 MB of memory increase introduced by 3.2.0 version of carbon because the earlier version (3.1.0) consumes ~400 MB. In any case we should update the documentation and set the minimum memory required to 1 GB since OS and other applications running on the server will also take up some memory. Thanks, Hiranya Associated JIRA: https://wso2.org/jira/browse/CARBON-10690 /Charitha ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev -- Hiranya Jayathilaka Associate Technical Lead; WSO2 Inc.; http://wso2.org E-mail: hira...@wso2.com; Mobile: +94 77 633 3491 Blog: http://techfeast-hiranya.blogspot.com ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev -- Hiranya Jayathilaka Associate Technical Lead; WSO2 Inc.; http://wso2.org E-mail: hira...@wso2.com; Mobile: +94 77 633 3491 Blog: http://techfeast-hiranya.blogspot.com ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev -- Sameera Jayasoma Technical Lead and Product Manager, WSO2 Carbon WSO2, Inc. (http://wso2.com) email: same...@wso2.com blog: http://tech.jayasoma.org Lean . Enterprise . Middleware ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
Re: [Carbon-dev] Minimum memory for carbon-3.2.0 products
Hi, I did a small test by starting up a DSS instance with samples, and by running the top command in Linux I get the following for the Java process, * 4133 laf 20 0 1216m 479m 16m S3 6.0 0:58.60 java Which means, 1216m of virtual memory allocated, and 469m of physical memory. And in System Statistics from our Carbon console. It gives the following values, * Memory Allocated 308.56 MB * Memory Usage 186.88 MB So seems it says, we actually only use 187 MB of memory!. Not sure, why these numbers are different when using different ways to get the memory usage. Cheers, Anjana. On Mon, Jun 6, 2011 at 12:28 PM, Sameera Jayasoma same...@wso2.com wrote: On Mon, Jun 6, 2011 at 10:08 AM, Hiranya Jayathilaka hira...@wso2.comwrote: On Mon, Jun 6, 2011 at 10:02 AM, Charitha Kankanamge chari...@wso2.comwrote: On Mon, Jun 6, 2011 at 9:46 AM, Hiranya Jayathilaka hira...@wso2.comwrote: On Mon, Jun 6, 2011 at 8:48 AM, Charitha Kankanamge chari...@wso2.comwrote: Folks, Our products consume ~600-700 MB of memory (we noticed this by checking the free memory after the server is started), however the release docs of most of the products says the minimum memory requirement as 256MB, which is totally wrong. G-reg docs correctly mention that it is 1G. Therefore, please update all the release docs accordingly. The startup script only allows a max heap size of 512 MB (which is good enough for most cases - production systems may need more memory depending on the load). So how can the server consume 600-700 MB? Have you increased the allocated heap size? No I did not. I just checked the free memory of my machine before and after server startup. I did not do any profiling or any tool based analysis. We may need to do that and figure out the exact memory growth. Then we have to conclude that it's not the Carbon server which is taking up all this memory. It is the JVM + OS + all other applications running on the machine. We need to use jconsole to figure out the exact amount of memory consumed by the JVM. I agree that memory usage has slightly increased in Carbon 3.2.0, but it cannot grow up to 600-700 MB range unless the server is heavily loaded. Even in that case an OOM will occur and server should crash because our default JVM settings do not let the heap grow beyond 512MB. +1 Thanks, Sameera Thanks, Hiranya Similarly, I noticed that ~200-250 MB of memory increase introduced by 3.2.0 version of carbon because the earlier version (3.1.0) consumes ~400 MB. In any case we should update the documentation and set the minimum memory required to 1 GB since OS and other applications running on the server will also take up some memory. Thanks, Hiranya Associated JIRA: https://wso2.org/jira/browse/CARBON-10690 /Charitha ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev -- Hiranya Jayathilaka Associate Technical Lead; WSO2 Inc.; http://wso2.org E-mail: hira...@wso2.com; Mobile: +94 77 633 3491 Blog: http://techfeast-hiranya.blogspot.com ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev -- Hiranya Jayathilaka Associate Technical Lead; WSO2 Inc.; http://wso2.org E-mail: hira...@wso2.com; Mobile: +94 77 633 3491 Blog: http://techfeast-hiranya.blogspot.com ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev -- Sameera Jayasoma Technical Lead and Product Manager, WSO2 Carbon WSO2, Inc. (http://wso2.com) email: same...@wso2.com blog: http://tech.jayasoma.org Lean . Enterprise . Middleware ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev -- *Anjana Fernando* Senior Software Engineer WSO2 Inc. | http://wso2.com lean . enterprise . middleware ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
Re: [Carbon-dev] Minimum memory for carbon-3.2.0 products
-1 for increasing Xmx to 1GB. We don't need that much memory OOTB. We have separate production recommendations which have a set of different JVM tuning params. On Mon, Jun 6, 2011 at 8:48 AM, Charitha Kankanamge chari...@wso2.comwrote: Folks, Our products consume ~600-700 MB of memory (we noticed this by checking the free memory after the server is started), however the release docs of most of the products says the minimum memory requirement as 256MB, which is totally wrong. G-reg docs correctly mention that it is 1G. Therefore, please update all the release docs accordingly. Associated JIRA: https://wso2.org/jira/browse/CARBON-10690 /Charitha ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev -- *Afkham Azeez* Director of Architecture; WSO2, Inc.; http://wso2.com Member; Apache Software Foundation; http://www.apache.org/ * http://www.apache.org/** email: **az...@wso2.com* az...@wso2.com* cell: +94 77 3320919 blog: **http://blog.afkham.org* http://blog.afkham.org* twitter: **http://twitter.com/afkham_azeez*http://twitter.com/afkham_azeez * linked-in: **http://lk.linkedin.com/in/afkhamazeez* * * *Lean . Enterprise . Middleware* ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
Re: [Carbon-dev] Minimum memory for carbon-3.2.0 products
I guess 600-700 MB is too much for a server. Wonder who is consuming this memory. We may have to profile and see. Thanks, Supun.. On Mon, Jun 6, 2011 at 8:48 AM, Charitha Kankanamge chari...@wso2.com wrote: Folks, Our products consume ~600-700 MB of memory (we noticed this by checking the free memory after the server is started), however the release docs of most of the products says the minimum memory requirement as 256MB, which is totally wrong. G-reg docs correctly mention that it is 1G. Therefore, please update all the release docs accordingly. Associated JIRA: https://wso2.org/jira/browse/CARBON-10690 /Charitha ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev -- Supun Kamburugamuva Technical Lead Product Manager, WSO2 Inc.; http://wso2.com Member, Apache Software Foundation; http://www.apache.org WSO2 Inc.; http://wso2.org E-mail: su...@wso2.com; Mobile: +94 77 431 3585 Blog: http://supunk.blogspot.com ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
Re: [Carbon-dev] Minimum memory for carbon-3.2.0 products
On Mon, Jun 6, 2011 at 8:48 AM, Charitha Kankanamge chari...@wso2.comwrote: Folks, Our products consume ~600-700 MB of memory (we noticed this by checking the free memory after the server is started), however the release docs of most of the products says the minimum memory requirement as 256MB, which is totally wrong. G-reg docs correctly mention that it is 1G. Therefore, please update all the release docs accordingly. The startup script only allows a max heap size of 512 MB (which is good enough for most cases - production systems may need more memory depending on the load). So how can the server consume 600-700 MB? Have you increased the allocated heap size? In any case we should update the documentation and set the minimum memory required to 1 GB since OS and other applications running on the server will also take up some memory. Thanks, Hiranya Associated JIRA: https://wso2.org/jira/browse/CARBON-10690 /Charitha ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev -- Hiranya Jayathilaka Associate Technical Lead; WSO2 Inc.; http://wso2.org E-mail: hira...@wso2.com; Mobile: +94 77 633 3491 Blog: http://techfeast-hiranya.blogspot.com ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
Re: [Carbon-dev] Minimum memory for carbon-3.2.0 products
On Mon, Jun 6, 2011 at 9:46 AM, Hiranya Jayathilaka hira...@wso2.comwrote: On Mon, Jun 6, 2011 at 8:48 AM, Charitha Kankanamge chari...@wso2.comwrote: Folks, Our products consume ~600-700 MB of memory (we noticed this by checking the free memory after the server is started), however the release docs of most of the products says the minimum memory requirement as 256MB, which is totally wrong. G-reg docs correctly mention that it is 1G. Therefore, please update all the release docs accordingly. The startup script only allows a max heap size of 512 MB (which is good enough for most cases - production systems may need more memory depending on the load). So how can the server consume 600-700 MB? Have you increased the allocated heap size? No I did not. I just checked the free memory of my machine before and after server startup. I did not do any profiling or any tool based analysis. We may need to do that and figure out the exact memory growth. Similarly, I noticed that ~200-250 MB of memory increase introduced by 3.2.0 version of carbon because the earlier version (3.1.0) consumes ~400 MB. In any case we should update the documentation and set the minimum memory required to 1 GB since OS and other applications running on the server will also take up some memory. Thanks, Hiranya Associated JIRA: https://wso2.org/jira/browse/CARBON-10690 /Charitha ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev -- Hiranya Jayathilaka Associate Technical Lead; WSO2 Inc.; http://wso2.org E-mail: hira...@wso2.com; Mobile: +94 77 633 3491 Blog: http://techfeast-hiranya.blogspot.com ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
Re: [Carbon-dev] Minimum memory for carbon-3.2.0 products
On Mon, Jun 6, 2011 at 10:02 AM, Charitha Kankanamge chari...@wso2.comwrote: On Mon, Jun 6, 2011 at 9:46 AM, Hiranya Jayathilaka hira...@wso2.comwrote: On Mon, Jun 6, 2011 at 8:48 AM, Charitha Kankanamge chari...@wso2.comwrote: Folks, Our products consume ~600-700 MB of memory (we noticed this by checking the free memory after the server is started), however the release docs of most of the products says the minimum memory requirement as 256MB, which is totally wrong. G-reg docs correctly mention that it is 1G. Therefore, please update all the release docs accordingly. The startup script only allows a max heap size of 512 MB (which is good enough for most cases - production systems may need more memory depending on the load). So how can the server consume 600-700 MB? Have you increased the allocated heap size? No I did not. I just checked the free memory of my machine before and after server startup. I did not do any profiling or any tool based analysis. We may need to do that and figure out the exact memory growth. Then we have to conclude that it's not the Carbon server which is taking up all this memory. It is the JVM + OS + all other applications running on the machine. We need to use jconsole to figure out the exact amount of memory consumed by the JVM. I agree that memory usage has slightly increased in Carbon 3.2.0, but it cannot grow up to 600-700 MB range unless the server is heavily loaded. Even in that case an OOM will occur and server should crash because our default JVM settings do not let the heap grow beyond 512MB. Thanks, Hiranya Similarly, I noticed that ~200-250 MB of memory increase introduced by 3.2.0 version of carbon because the earlier version (3.1.0) consumes ~400 MB. In any case we should update the documentation and set the minimum memory required to 1 GB since OS and other applications running on the server will also take up some memory. Thanks, Hiranya Associated JIRA: https://wso2.org/jira/browse/CARBON-10690 /Charitha ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev -- Hiranya Jayathilaka Associate Technical Lead; WSO2 Inc.; http://wso2.org E-mail: hira...@wso2.com; Mobile: +94 77 633 3491 Blog: http://techfeast-hiranya.blogspot.com ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev -- Hiranya Jayathilaka Associate Technical Lead; WSO2 Inc.; http://wso2.org E-mail: hira...@wso2.com; Mobile: +94 77 633 3491 Blog: http://techfeast-hiranya.blogspot.com ___ Carbon-dev mailing list Carbon-dev@wso2.org http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
