Trabalho 1 – EPOS
Idle-waiting Thread Joining
– Este trabalho tinha como objetivo alterar o modo que era feito o “join” em uma Thread. Sendo que o mesmo inicialmente era feito da seguinte maneira:
[code lang=”c”] while(_state != FINISHING)
yield();
[/code]
O mesmo consiste basicamente, em verificar o estado da thread que se esta dando join e caso o estado nao seja FINISHING dar a vez a outro processo. Esta solucao, acarreta no consumo excessivo de recursos ja que o mesmo sempre retorna para a fila de _ready. E eh executado novamente quando o escalonador escolher esta thread. O trabalho pede que seja modificado de modo que o consumo de recursos nao seja excessivo.
Arquivos Modificados:
– thread.cc
– Thread.h
Solucao:
Foi criada uma variável adicional em threads.h, _waiting_for_me, que é um ponteiro para uma thread. Quando o método “join” é chamado, a thread que está executando é colocada no _waiting_for_me da thread chamada e é suspensa. Se a thread já finalizou ou alguém já chamou “join” nela, nada é feito. No método “exit”, caso _waiting_for_me esteja preenchida, é chamado o método “resume” na thread referenciada.
Pensamos em colocar uma lista de referências para várias threads poderem dar “join” na mesma thread, porém vimos na documentação do POSIX que isso era considerado um erro lógico, e achamos que acarretaria um consumo de recursos adicional desnecessário, pois não seria possível usar o _link já existente na thread, já que ela teria de estar tanto na lista de suspensos quanto na lista _waiting_for_me da outra thread.
Explicacao mais detalhada da implementacao escolhida e outras solucoes pensadas.
Now planning to come back when I have the right kind of attention to read carefully, and a stop at growwithsteadyintent reinforced that plan, choosing the right moment to read certain content is a quiet form of respect for the work and this site is generating those careful planning behaviours from me consistently as a reader.
Decided to set a calendar reminder to revisit, and a stop at findyourstrongdirection extended that revisit list, calendar entries for content are a level of commitment I rarely make but when I do they signal a higher regard than a simple bookmark and this site has earned that calendar tier of relationship from me today.
Probably going to mention this site in a write up I am working on later this month, and a stop at startmovingstrategicallynow provided more material for that potential mention, content worth referencing in my own published work rather than just personal reading is content with the highest endorsement level and this site has earned that endorsement.
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Now noticing that the post never raised its voice even when making a strong point, and a look at createimpactplanningframework continued that calm volume, content that can make important points without resorting to typographic emphasis or emotional appeal is content that trusts its substance to do the work and this site has that confidence consistently.
Reading this post made me realise I had been settling for lower quality elsewhere, and a look at startyourjourneynow extended that recalibration, content that exposes how much I had been accepting in adjacent sources is content with calibrating effect on my standards and this site is performing that calibration function across topics for me reliably.
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Refreshing tone compared to the dry corporate posts on similar topics, and a stop at startprogressnow carried that personality through nicely, you can tell when a real person is behind the writing versus a content team chasing metrics and this site definitely falls into the former category clearly across what I have seen.
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Generally I do not leave comments but this post merits a small note, and a stop at growwithintentionalsteps extended that comment worthy quality, the urge to actively contribute to a sites community rather than passively consume from it is something specific content provokes and this site has provoked that engagement urge from me today.
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A welcome contrast to the loud takes that have dominated my feed lately, and a look at seohive extended that calm voice, content that arrives without yelling has become unusual in the modern attention economy and this site is one of the few places I have found that consistently delivers without raising its voice.
Speaking carefully because I do not want to overstate things this site is genuinely above average across multiple measurements, and a stop at discovernewfocus continued the above average performance, the calibration of judgement against potential overstatement is something I take seriously and this site clears the higher bar even after that calibration applies.
Generally I do not leave comments but this post merits a small note, and a stop at growwithintentionalsteps extended that comment worthy quality, the urge to actively contribute to a sites community rather than passively consume from it is something specific content provokes and this site has provoked that engagement urge from me today.
Worth flagging this post as worth a careful read rather than a casual skim, and a stop at createimpactplanningframework earned the same careful approach, the few sites that warrant slower reading are sites I now treat differently from the daily content stream and this one has clearly moved into that elevated treatment category.
Learned something from this without having to dig through layers of fluff, and a stop at flareaisle added a bit more context that helped tie things together for me, definitely a useful corner of the internet for anyone who wants real information without the usual marketing nonsense around it that often ruins similar pages.
Came in tired from a long day and the writing held my attention anyway, and a stop at startprogressnow kept that going, content that can engage a fatigued reader is doing something right because most online reading happens in suboptimal conditions like that one and quality content adapts to it without complaint.
Spent a few minutes here and came away with a clearer picture of the topic, the writing keeps things simple without dumbing them down, and after a stop at jedbroom the rest of the points lined up neatly which is something I appreciate when I am short on time and need answers fast.
Reading this slowly to give it the attention it deserved, and a stop at unlockcreativepaths earned the same slow read, choosing to read slowly is a small act of respect for content quality and very few sites earn that respect from me but this one did so without any explicit ask which is the cleanest way.
Honestly this was the highlight of my reading queue today, and a look at learnandexecuteclearly extended that across more pages I will return to, ranking what I read against what else I read each day is something I do informally and this site keeps moving up in those rankings the more I explore it.
Quality writing that respects the reader’s intelligence without overloading them, and a quick look at learnandaccelerategrowthpath reflected that approach, a balanced thoughtful site that earns trust by being consistent rather than by shouting about how trustworthy it is which is the usual approach online sadly across most content categories.
Polished and informative without feeling overproduced, that is the sweet spot, and a look at discoverforwardmomentumnow hit it again, you can tell when a site has been built with care versus thrown together for the sake of having something to put online and this is clearly the former approach taken by the team.
I usually skim posts like these but this one held my attention all the way through, and a stop at isebulb did the same, that is a strong endorsement coming from me because I am usually quick to bounce when content gets repetitive or fails to deliver on its initial promise made in the headline.
Worth saying that the prose reads naturally without straining for style, and a stop at buildyournextstrategy maintained the same unforced quality, writing that achieves elegance without effort is the highest tier and this site has clearly worked out how to land that effortless quality consistently rather than only on the writers best days.
Кстати, в соседней ветке кто-то спрашивал про адекватную альтернативу обычным школам. Сам недавно наткнулся на одну площадку. Там как раз упор на индивидуальный темп, нет этой дикой уравниловки: школа онлайн 11 класс . Честно? Зашли просто на пробный урок, а в итоге остались на весь год. Преподаватели не просто читают по бумажке, а реально вовлекают. Ребенок сам ноутбук включает к началу пары. Так что если кому актуально – очень рекомендую хотя бы тест-драйв пройти.
The lack of unnecessary jargon made the post accessible without sacrificing accuracy, and a look at duetcoasts continued in the same accessible style, technical topics often hide behind specialised vocabulary but here the writer trusts the reader to keep up with plain language and that trust pays off nicely throughout the entire post.
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Felt the post handled a sensitive angle of the topic with appropriate care, and a look at discovercreativegrowth extended that careful handling across related material, sites that can navigate delicate territory without causing damage are rare and require a level of judgement that comes from experience rather than from following any clear playbook.
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Bookmark earned and shared the link with one specific person who would care, and a look at buildyournextstrategy got the same targeted share, sharing carefully rather than broadcasting is a discipline I try to maintain and this site is generating shares from me at a sustainable rate rather than the spam rate of viral content.
Started this morning and finished at lunch with a small sense of having spent the time well, and a look at discovernewdirections extended that satisfaction into the afternoon, content that fits naturally into the rhythm of a working day rather than demanding a dedicated reading block is increasingly the kind I prefer.
Loved the writing voice here, friendly without being fake and confident without being arrogant, and a stop at findyournextbreakpoint carried the same tone forward, the kind of personality that makes a reader feel welcome rather than lectured at which is a balance plenty of writers struggle to find no matter how long they have been at it.
Now noticing that the post avoided the temptation to be funny in places where humour would have undermined the substance, and a stop at discoverinnovativepaths maintained the same restraint, knowing when to be serious is a rare editorial virtue and this site has clearly developed it through what I assume is careful editorial practice over years.
Now appreciating that the post did not try to imitate any other style I might recognise, and a stop at seospark continued that distinct voice, content with its own register rather than borrowed from elsewhere is content with real authorial presence and this site has clearly developed that presence through what feels like patient editorial work.
Worth flagging this site to a few specific friends who would appreciate the editorial sensibility, and a look at learnandoptimizepathwaynow added more pages I will mention to them, recommending sites to specific people requires understanding both the site and the person and this site is making those personalised recommendations easy and natural for me.
Чтобы быстро и эффективно узнать местонахождение по номеру телефона, воспользуйтесь нормальными ребята реально помогают.
Слушай, тут главное — без глупостей.
Соблюдение этики помогает избежать неприятностей и юридических последствий.
Да, и ещё момент — без фанатизма.
Thanks for taking the time to write this, it is clear that some thought went into how each point would land, and after I went through createconsistentdirectionalgrowth I had a better grip on the topic, real value without the usual marketing noise people have to put up with online when searching for answers.
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Adding this to my list of go to references for the topic, and a stop at growintentionallynow confirmed the rest of the site deserves the same, definitely the kind of resource that earns its place rather than getting forgotten the moment the next interesting article shows up in my feed somewhere else on the web.
Glad the writer kept this short rather than padding it out, the points stand on their own without needing extra context, and a look at findgrowthsolutionspath kept the same approach going, brevity is a sign of confidence in the substance and the team here clearly trusts their content to land without filler.
Picked this for my morning read because the topic seemed worth the time, and a look at discovernewfocuspoints confirmed the choice was right, my morning reading slot is precious and giving it to this site felt like a good investment rather than a waste which is a higher endorsement than I usually offer for content.
The tone stayed consistent across the whole post which is harder than it looks for longer pieces, and a look at learnandoptimizepathwaynow continued the same voice, this kind of editorial consistency is a sign of either a single careful writer or a tightly run team and either is impressive today across the broader media environment.
Comfortable reading experience throughout, no jarring tone shifts and no awkward formatting, and a look at learnandacceleratesuccess kept that smooth feel going, the kind of editorial polish that goes unnoticed when present but glaring when absent is something this site has clearly invested in across the broader content as well which deserves recognition.
Nice and clean, that is the best way to describe the writing here, no clutter and no wasted words, and a quick visit to discovernewdirectionpaths kept that going, I appreciate when a site treats its readers like people who can think for themselves without needing constant hand holding through every paragraph.
One of the more thoughtful posts I have read recently on this topic, and a stop at seospark added even more weight to that impression, this is genuinely good content that holds its own against far better known sites in the same space without trying to imitate any of them at all which I appreciate.
This one is staying open in a tab for the rest of the day so I can come back and re read certain parts, and a look at neatdawn suggests I will be doing the same with a few more pages here too, this is going to be a deep dive over the coming hours.
Felt like the post had been edited rather than just drafted and published, and a stop at learnandadvancegrowth suggested the same care across the site, the difference between edited and unedited content is enormous for the reader and this site has clearly invested in the editing pass that most blogs skip entirely which really does show up.