comcast redzone

Tracking Kmalloc Memory why not RedZone and Usercaller [0.000000:0] kmem_cache_create:size-64 set RedZone and Calluser [0.000000:0] kmem_cache_create:size-64 set Poiso N[0.000000:0] kmem_cache_create:size-64 ralign, align 32[0.000000:0] kmem_cache_create:size-64 disable RedZone and Usercaller[0.000000:0] Kmem_cache_init:ac name size-64, Cachep ee000080[0.000000:

Http://thinkiii.blogspot.jp/2014/02/debug-with-slub-allocator.htmlThe Slub allocator in Linux have useful debug features. Such as poisoning, readzone checking, and Allocate/free traces with timestamps. It ' s very useful during product developing stage. Let ' s create a kernel module and test the debug features.Make sure Slub allocator are built in your kernel.Config_slub_debug=yconfig_slub=yThe Slub allocator creates additional meta data to store Allocate/free traces and timestamps. Everytime S

publication Tougher punishment more strict punishment Here's a quick review of the issue: What is net neutrality all about? The principle generally means that content isn' t prioritized above others, so that a user can go where he wants and do what he wants on the Internet without the interference of his broadband provider. supporters of net neutrality protections say that without the rules, Internet service providers like Comcast and Time Warner wil

-listviewDrag reorder in ListItem. Developers have given up on maintenance but there are still a lot of followers. FreeflowA layout engine produced by Comcast. Freeflow makes it easy for you to customize layouts and beautiful conversion animations.See Comcast good excitement, because he is the author of the company's largest customer. FadingactionbarFolding style of Actionbar. Speaking of Actionbar, the

be fixed by the component. See. Drag-sort-listviewDrag reorder in ListItem. Developers have given up on maintenance but there are still a lot of followers. FreeflowA layout engine produced by Comcast. Freeflow makes it easy for you to customize layouts and beautiful conversion animations.See Comcast good excitement, because he is the author of the company's largest customer. FadingactionbarFolding st

IPv6 adoption: Challenges and Choices, and ipv6 adoption challenges Today, many enterprises have begun to adopt IPv6 (Internet Protocol version 6th), and more countries are preparing to increase IPv6 traffic globally. As more and more devices connect to the Internet (such as smart cars, smart homes, and even smart cities), and the available IPv4 address pools quickly run out, today's network space has become more important than ever before. However, using NAT (Network Address Translation) as th

At present, ABR (Adaptive bitrate Adaptive bitrate technology) is a mainstream video playback format, HLS,HSS and HDS are widely used. Multi-screen video playback is also a trend, including mobile phones, tablets, computers, televisions, set-top boxes and other fused together, different occasions different network conditions, may choose different devices to play video.In the video solution test, our system general terminal playback format contains the Hls,hss,hds, depending on the device to choo

. CardslibA card-style layout control. Remember the former Youdao Dictionary of the default page is this layout.Screen PhotoViewImageView extension, supports indenting and gestures. ListviewanimationsAdds animations to the ListView and also provides the ability to swipe to delete selected items. Delete Actions like Android Mail. IonAnother image loads the library asynchronously. At least three are recommended, many wheels. Android-menudrawerAnother component of a sliding menu. Androi

recently feel the company's Nginx version is too low and we have to add new Nginx module so can only think of is a smooth upgrade this way. NginxThe update is really fast, the latest Nginx 0.8.55 and Nginx 0.7.69 old stable version has been released. I prefer to use the new version of the software, so the original nginx-1.0.2 Smooth Upgradeto nginx-1.0.5 stable version. And record this process, hope to have a friend in need a little help. 1. Check the version you are currently using befor

:partially addressable:01 Geneva 0737:heap left RedZone : Fa38:heap right Redzone:fb39:freed Heap region:fd 40:stack left Redzone:f141:stack mid redzone:f242:stack right Redzone:f343:stack partial redzone:f444:stack after Return:f5 45: Stack use after Scope:f846:global redzone:f947:global init order:f648:poisoned by User:f749:asan internal:fe 50: ==11254== Aborting Can see, the program in the hint CORE.C 35th line has a heap-use-after-f

= -- Show-below-main = no | yes continue stack traces below main () [no]-- Default-suppressions = yes | noLoad default suppressions [yes]-- Suppressions = -- Gen-suppressions = no | yes | all print suppressions for errors? [No]-- Db-attach = no | yes start debugger when errors detected? [No]Note: deprecated feature-- Db-command = -- Input-fd = -- Dsymutil = no | yes run dsymutil on Mac OS X when helpful? [No]-- Max-stackframe = Than -- Main-stacksize = [Min (max (current 'ulimit 'value, 1 MB),

(kmem_bufctl_t) + sizeof (struct slab) If the alignment in the slab or not, then external, notNeed to align #ifdef config_page_poisoning/* If we ' re going to use the generic kernel_map_pages () * Poisoning and then It's going to smash the contents of * The RedZone and userword anyhow, so switch them off. */if (size% Page_size = = 0 Flags Slab_poison) Flags = ~ (Slab_red_zone | Slab_store_user); The buffer length of the #endif}//l1 Cache

= Mpool_pri_very_low;BreakCase db_priority_low:pfactor = Mpool_pri_low;BreakCase db_priority_default:pfactor = Mpool_pri_default;Breakcase db_priority_high:pfactor = Mpool_pri_high; break; case db_priority_very_high:pfactor = Mpool_pri_very_high; break;} adjust = 0; if (pfactor! = 0) adjust = (int) c_mp->pages/pfactor; if (F_isset (BHP, Bh_dirty)) Adjust + = (int) c_mp->pages/mpool_pri_dirty; if (Adjust > 0) {if (MPOOL_LRU_ Redzone-bhp->priority >= (

SQUID is the most versatile, but the architecture is too old, performance is not goodVarnish is a memory cache, the speed is first-class, but the memory cache also limits its capacity, cache pages and pictures are generally very goodNginx is a reverse proxy/web server, with plug-ins can do this sideline, but it does not support a lot of featuresATS is a good choice at the moment.BTW, this can be seen.Qa with Varnish software on Comcast Apple CDNThe f

of our designs. In some cases, we can test the options with small sample users, like the prototype test for my TV page mentioned above. For other situations, like verifying the use of sidebar navigation, you need to look at the actual usage records of a large number of users. At this point, we need to use A/b Test. For A/b test for mobile applications, we use swrve--, the most mature A/b test tool in my opinion, which not only provides goal seeking (when the winning solution is clear, A/b test

, Comcast released the client that they used in the native go language for the production line.ConclusionApache Pulsar is the next generation messaging system for Yahoo Open source. At the beginning of 2017, Yahoo will pulsar to Apache for hatching. Over the past year, Apache Pulsar has released a total of 6 editions, including 2.0 milestones released in June. The latest version of 2.1 continues the pulsar minimalism principle, and in the real sense,

This is very amazing cool surfing around the three-dimensional flash site. With the shock of the visual experience and incredible interaction between users, although Flash is certainly not the most favorite medium barrier-free, it makes the web with features, Flash enables designers and developers to provide rich content to browsers, create movement, interactivity, and impressive visual experience, Here is a collection of the most flash sites, 3D environments and 3D interfaces, be sure to send

also the world's greenest building, using Cassandra to store sensor data and to provide a way to conserve water and energy by analyzing the data. At the same time, the world's most intelligent thermostat is also used Cassandra, even if you do not plan it, it will be able to understand your energy use patterns and automatically adjust the settings. communication: Although I have not yet been able to start Comcast new X1 platform, but I am extremely ex

outstanding engineer and chief designer at Comcast IPv6. "as an important network community, we need to understand the transformation process, IPv4 and IPv6 traffic are one of many important indicators." IPv6 traffic data "helps you understand the upgrade trend. But for carriers, I don't think it is very important to know how well they can satisfy their customers, dave Siegel, vice president of IP service product management at Global Crossing, said,

databases, as well as in China about the Cassandra article is less, do not know its people will not try, a variety of reasons so that before the domestic use of Cassandra not present the trend of fire.But in recent years, with its version upgrade, application practice increased, has Instagram migrated to Cassandra,facebook part of the project on Cassandra, Cassandra 2015 meeting participants more than 6000 people, such as events, Austrian consulting firm Solid IT compiled data shows that 2015 C