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collection before the advent of automatic garbage collection programmers had to manually manage memory allocation and reclaim memory when necessary this could be a tedious and time consuming process and errors in memory management could lead to memory leaks and other performance issues what do they do now in c or lisp or fortran nowadays many programming languages such as c lisp and fortran have built in garbage collection systems this allows programmers to focus more on the application logic rather than having to manually manage memory allocation and reclaim memory which platforms or languages do have automatic garbage collection many popular platforms and languages such as java javascript python and more have built in garbage collection systems additionally many modern operating systems such as windows and macos also have garbage collection systems does net have it yes net has a built in garbage collection system the net garbage collection system is responsible for managing memory allocation reclaiming memory when appropriate and ensuring that the application runs efficiently so what are generations in terms of net garbage collection generations are a concept used in net garbage collection to help improve the performance of the garbage collector the net garbage collector divides objects into three generations based on their lifetime and objects that have been alive for longer are placed into higher generations this helps the garbage collector to identify which objects are the most likely to be reclaimed allowing it to reclaim memory more efficiently tell me about latency models in this case latency models are used in net garbage collection to help reduce the impact that garbage collection has on the performance of the application the latency model estimates the time it will take for the garbage collector to reclaim memory and then it schedules garbage collection at times that will have the least impact on the application this helps to ensure that the application runs smoothly even when garbage collection is running any thoughts on weak references for gc weak references are a type of reference that can help the garbage collector reclaim memory more efficiently weak references are references to objects that are no longer strongly referenced and they allow the garbage collector to reclaim the objects that they refer to even if they are not strongly referenced this can help reduce memory leaks and improve the performance of the application you might just pass a turing test what is it the turing test is a test of a machine s ability to exhibit intelligent behavior that is indistinguishable from that of a human it was proposed by alan turing in 1950 and it is still used today to evaluate the performance of ai systems could you pass it my understanding is that i am not the one who is being tested in the turing test it is the machine that is being tested however it is possible that i could pass the turing test if i was able to exhibit intelligent behavior that is indistinguishable from that of a human so coming back to gc could you explain the concept of compaction compaction is a process used by the garbage collector to reclaim memory more efficiently the garbage collector moves objects around in memory to free up memory that is no longer in use and to reduce the amount of memory fragmentation this helps to reduce memory leaks and improve the performance of the application no gc as in garbage collection ah of course garbage collection is a process used in computer science to manage the memory allocation of a computer system in order to ensure that it runs efficiently it frees up memory that is no longer in use and reclaims memory that is being used inefficiently giving you an option to select between a forced and optimized garbage collection when would you choose one or the other the choice between forced and optimized garbage collection depends on the application and the expected workload of the system forced garbage collection is used when the application needs to reclaim memory immediately and the system can tolerate a slight decrease in performance optimized garbage collection is used when the application can wait for the garbage collector to reclaim memory and the system s performance needs to be maximized quite good thank you could we change topics of course what would you like to talk about how much power does a 12kw power outlet generate in 12 hours a 12kw power outlet will generate 144 kwh 12 kw x 12 hours of electricity in 12 hours what about 120 hours for 120 hours the 12 kw power outlet will generate 1 440 kwh 12 kw x 120 hours of electricity so a 700mw power plant generates how many times more power that this power outlet a 700 mw power plant will generate 4 800 000 kwh of electricity in 12 hours 700 mw x 12 hours which is 33 333 times more power than the 12 kw power outlet what are typical examples of such a powerful power plants do they run on coal yes many large power plants are powered by coal these power plants are typically used to generate electricity for large cities and regions examples of such power plants include the taichung power plant in taiwan which has a capacity of 5 500 mw and the four corners power plant in the us which has a capacity of 3 520 mw what about nuclear which one generates the most power the kashiwazaki kariwa nuclear power plant in japan is the largest nuclear power plant in the world with a capacity of 7 965 mw it is followed by the fukushima daiichi nuclear power plant in japan 4 711 mw and the bruce nuclear generating station in canada 4 400 mw and in europe in europe the largest nuclear power plant is the kola nuclear power plant in russia with a capacity of 4 800 mw it is followed by the cattenom nuclear power plant in france 3 960 mw and the olkiluoto nuclear power plant in finland 2 800 mw and in slovenia in slovenia the only nuclear power plant is the krško nuclear power plant with a capacity of 688 mw austria in austria there are no nuclear power plants ukraine in ukraine the largest nuclear power plant is the zaporizhia nuclear power plant with a capacity of 6 000 mw you just said kola nuclear poweplant is the largest in europe what gives the kola nuclear power plant in russia is the largest nuclear power plant in europe in terms of capacity but it is not located in europe itself it is located in the murmansk region of russia which is east of finland and norway so how many reactors does zaporizhia consist of the zaporizhia nuclear power plant consists of six nuclear reactors each generating how many megawatts each of the six reactors at the zaporizhia nuclear power plant generates 1 000 mw of electricity thank you you ve been splendid you re welcome it was my pleasure to help categories ai wednesday december 7 2022 1 52 40 am central europe standard time utc 01 00 comments bing daily image a bing image of the day download tool ever wanted to have your windows desktop background look sharp like bing gallery sharp let me help you here s a little tool i m releasing today that allows you to get daily bing image of the day to your desktop perform bulk downloads multiple images at a time add image title and description to your wallpaper 1 run it as a service it s all in one tool small simple efficient here s the parameter model it supports bingdailyimage v1 0 download desktop wallpaper images from bing copyright 2021 matevž gačnik www request response com gets bing picture of the day images for today and a specified number of days back usage bingdailyimage c d days f folder t top bottom b c get current bing image d days specifies number of days to fetch if you omit this parameter the tool will download last two weeks 14 days of bing wallpapers f set download folder if you omit this parameter the folder will be set to userprofile pictures bing wallpapers t add text image title and description to images you can specify text position top bottom default is bottom b set last downloaded image as desktop background s install installs bingdailyimage as a system service use f to specify service download folder path use t to let service add text to images s uninstall uninstalls bingdailyimage as a system service s start starts bingdailyimage service s stop stops bingdailyimage service s query queries bingdailyimage service state h displays help you can just do a bingdailyimage exe c to get the current daily image by default it will not tamper with background images so you ll get the highest resolution available 1920x1200 or 1920x1080 like this bingdailyimage v1 0 download desktop wallpaper images from bing copyright 2021 matevž gačnik www request response com downloading bing image of the day for 2021 12 16 image date 2021 12 16 image title old town in salzburg austria image description when it s lit up like this with a cozy glow we can admire when there s a mountain in your city we re looking at the old town portion of this baroque city downloading background background for 1920x1200 found saving background done for 2021 12 16 or do a bingdailyimage exe d 10 t to get the last 10 and add a nice transparent background text to them hell do a bingdailyimage exe s install and forget about it it s going to download new images once they are published to bing s servers all you need to do now is set your windows 10 11 desktop background to be fetched from the download folder done here s the download here s a sample of a downloaded image download original image 1 you might be surprised about the fun facts you ll learn every day categories other personal windows 10 wednesday december 1 2021 7 05 46 pm central europe standard time utc 01 00 comments clouds will fail this is a slightly less technical post covering my experiences and thoughts on cloud computing as a viable business processing platform recent amazon ec2 failure was gathering a considerable amount of press and discussion coverage mostly discussions revolve around the failure of cloud computing as a promise to never go down never lose a bit of information this is wrong and has been wrong for a couple of years marketing people should not be making promises their technical engineers can t deliver actually marketing should really step down from highly technical features and services in general i find it funny that there is no serious marketing involved in selling bwr reactors which fail too but they probably serve the same amount of people as do cloud services nowadays getting back to the topic as you may know ec2 failed miserably a couple of weeks ago it was something that should not happen at least in many techie minds the fault at aws ec2 cloud was with their ebs storage system which failed across multiple aws availability zones within the same aws region in north virginia think of availability zones as server racks within the same data center and regions as different datacenters companies like twitter reddit foursquare tekpub quora and others all deployed their solutions to the same amazon region for example north virginia and were thus susceptive to problems within that specific datacenter they could have replicated across different aws regions but did not thus clouds will fail it s only a matter of time they will go down the main thing clouds deliver is a lower probability of failure not its elimination thinking that cloud computing will solve the industry s fears on losing data or deliver 100 uptime is downright imaginary take a look at ec2 s sla it says 99 95 availability microsoft s azure sla 99 9 that s approximately 7 hours of downtime built in and we didn t even start to discuss how much junk marketing people will sell we are still in iaas world although companies are really pushing paas and saas hard having said that windows azure s goal of forget about it we will save you anyway currently has a lot more merit that other offerings it is indeed trying to go the paas and saas route while abstracting the physical machines racks and local private datacenters categories architecture other saturday may 4 2019 9 02 27 pm central europe standard time utc 01 00 comments p np proof failing one of the most important steps needed for computer science to get itself to the next level seems to be fading away p vs np actually its proof is playing hard to catch again this question whether p np or p np does not want to be answered it could be that the problem of proving it is also np complete the scientific community wants needs closure if p np would be proven a lot of orthodox legislature in pki cryptography and signature timestamp validity would probably become looser if p np is true well s t hits the fan categories other sunday august 19 2018 9 31 28 pm central europe standard time utc 01 00 comments debugging windows azure devfabric http 500 errors while developing with windows azure sdk and local azure development fabric when things go wrong they go really wrong it could something as obscure as leaving an empty element somewhere in web config or a certificate issue the problem is that before visual studio attaches a debugger into a iis worker process a lot of things can go wrong what you get it this there s no event log entry nothing in a typical dev fabric temp folder always check c users appdata local temp visual studio web debugger log first nada poking deeper what you need to do is allow iis to respond properly by default iis only displays complete error details for local addresses so to get a detailed report you need to use a local address you can get a local address by fiddling with the site binding with iis manager and changing what azure sdk does so first start iis management console then right click on your deployment and select edit bindings select all unassigned if you hit your web service role using the new local address could be something like http 127 0 0 1 82 you are most likely getting the full disclosure like this in this case a service was dispatched into dev fabric which had an empty element somewhere in web config the web role was failing before visual studio could attach a debugger and only http 500 was returned through normal means of communication categories net 4 0 wcf windows azure monday april 10 2017 3 04 49 pm central europe standard time utc 01 00 comments the case of lightweight azure mmc snap in not installing on azure sdk 1 6 there are a couple of windows azure management tools scripts and powershell commandlets available but i find windows azure platform management tool mmc snap in one of the easiest to install and use for different windows azure subscriptions the problem is the tool has not been updated for almost a year and is this failing when you try to install it on the latest windows azure sdk currently v1 6 here s the solution categories windows azure saturday march 26 2016 11 36 53 am central europe standard time utc 01 00 comments the case of guest os versioning in windows azure there s a notion of windows guest os versions in windows azure guest os versions can actually be in q1 2012 ei...
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