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.
Such writing is increasingly rare and worth supporting through attention, and a stop at nextgentrendzone extended that supportive attention across more pages, the conscious choice to spend time on sites that produce careful work rather than convenient consumption is itself a small form of patronage and this site is receiving that conscious patronage from me.
Felt a small spark of recognition when the post named something I had been struggling to articulate, and a look at echogrovecollective produced more such moments, the rare service of giving readers language for fuzzy intuitions is one of the higher values that good writing can provide and this site offered several today instances.
Recommend this to anyone who values clear thinking over flashy presentation, and a stop at prismwing continued in the same understated way, this site has its priorities in the right place which makes it worth supporting through repeat visits and recommendations rather than just one passing read today before moving on quickly elsewhere.
Now noticing that the post avoided the temptation to be funny in places where humour would have undermined the substance, and a stop at arctools 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.
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Эта публикация содержит ценные советы и рекомендации по избавлению от зависимости. Мы обсуждаем различные стратегии, которые могут помочь в процессе выздоровления и важность обращения за помощью. Читатели смогут использовать полученные знания для улучшения своего состояния.
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Reading this in the time it took to drink half a cup of coffee, and a stop at novaroad fit naturally into the second half, content that respects the rhythms of a typical morning is content with practical fit and this site has the kind of length and pacing that works for the way I actually read.
Liked everything about the experience, from the opening through to the closing notes, and a stop at epicbooth extended that into more pages, finding a site where the editorial vision shows through every choice rather than feeling random is an increasingly rare experience and one I am glad to have today during this particular reading session.
A piece that respected the reader by not over explaining the obvious, and a look at stretchstudio continued that calibrated approach, finding the right level of explanation is one of the harder editorial calls and this site has clearly thought carefully about what readers will already know versus what they need help with consistently.
My friends would appreciate a few of these posts and I will be sending links accordingly, and a look at vexflag added more pages to my share queue, content that earns shares to specific people in specific contexts is content with social utility and this site is generating those targeted shares from me consistently lately.
Came in expecting another generic take and got something with actual character instead, and a look at epicbooth carried that personality forward, finding a distinct voice on a saturated topic is impressive and worth pointing out when it happens because most sites end up sounding identical to their nearest competitors quickly.
Taking the time to read carefully here has been worthwhile for the past hour, and a look at zeroprobe extended the worthwhile reading, the calculation of return on reading time spent is something I do informally and this site has been producing positive returns across multiple sessions during the last week of regular visits and reads.
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A nicely understated post that does not shout for attention, and a look at jadeperk maintained the same quiet quality, understatement is a stylistic choice that distinguishes serious writing from attention seeking writing and this site has clearly committed to the understated approach as a core editorial value rather than just a phase.
Genuine pleasure to read, and that is not something I say often after a casual click through, and a quick visit to nextlevelcart kept the same feeling going across the rest of the site, finding writing that actually feels good to spend time with rather than just functional is increasingly rare on the open web.
Appreciated the way each section connected smoothly to the next without abrupt jumps, and a stop at ohmcore kept that flow going nicely, transitions are something most blog writers ignore but the difference is huge for the reader who is trying to follow a sustained line of thought today across many different topics.
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A piece that handled multiple complications without becoming confused, and a look at protoflux continued that organisational clarity, holding multiple threads in a single piece without losing any of them is a sign of skilled writing and this site has clearly developed the editorial discipline to manage complexity without sacrificing readability throughout.
Выбор формата лечения определяется состоянием пациента, наличием хронических заболеваний и мотивацией к выздоровлению. При необходимости врач переводит пациента из амбулаторной формы в стационарную, обеспечивая непрерывность и безопасность терапии.
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Got pulled in by the headline and stayed because the content actually delivered on the promise, and a stop at echoharborstore kept that trust intact, when a site lives up to its own framing it earns the right to keep showing up in my browser tabs going forward indefinitely from here on out really.
Well crafted post, the structure flows naturally from one point to the next without forcing transitions, and a stop at protoflux kept the same flow going, you can tell when a writer has thought about how their content reads rather than just what it contains and this is one of those examples.
Got pulled in by the headline and stayed because the content actually delivered on the promise, and a stop at bundlebungalow kept that trust intact, when a site lives up to its own framing it earns the right to keep showing up in my browser tabs going forward indefinitely from here on out really.
Worth every minute of the time spent reading, and a stop at jetmesh extends that value across more pages, in a media environment where most content is engineered to waste attention this site stands out by treating reader time as something valuable rather than something to be exploited and stretched as far as possible.
Decided I would read the archives over the weekend, and a stop at velvetpeakgoods confirmed that the archives would be worth the time, very few sites have archives I would actively read through but this one has earned that level of interest based on the consistent quality across what I have sampled so far.
В этом исследовании рассмотрены методы лечения зависимостей и их эффективность. Мы проанализируем различные подходы, используемые в реабилитационных центрах, и представим данные о результативности программ. Читатели получат надежные и научно обоснованные сведения о данной проблеме.
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Honest reaction is that this is the kind of writing I would defend in a conversation about good blog content, and a look at flaircase reinforced that, the rare site whose work I would actively recommend rather than just tolerate is the kind I want to support through return visits regularly.
Closed my email tab so I could read this without interruption, and a stop at growthcart earned the same protected attention, when content is good enough to defend against the usual digital distractions you know it deserves better than the half attention most online reading gets in a typical busy day.
Glad the writer did not feel compelled to cover every possible angle of the topic, focus is a virtue, and a stop at freshtrendstation reflected the same disciplined scope, knowing what to leave out is half of what makes good writing good and this post has clearly been edited with that principle in mind.
Decided this was the best thing I had read all morning, and a stop at perfectbuycorner kept that ranking intact, ranking my reading is something I do mentally throughout the day and the top rank is competitive and not easily won but this site won it without needing to overstate its claims for that.
Thanks for the breakdown, it gave me a clearer picture of something I had been confused about for a while now, and a stop at purepost closed the remaining gaps in my understanding nicely, no need to hunt around twenty other articles to put the pieces together which is a real time saver.
Came here from a search and stayed for the side links because they were that interesting, and a stop at flairpack took me even further into the site, the kind of organic exploration that good content invites is something most sites kill through aggressive interlinking and pushy navigation choices rather than relying on quality.
However many similar pages I have read this one taught me something new, and a stop at ohmgrid added more new material, content that contributes genuinely fresh information rather than recycling what is already widely available is content with real informational value and this site is providing that informational freshness at a notable rate.
Walked away with a clearer head than I had before reading this, and a quick visit to vividloft only sharpened that, the writing has a way of cutting through the noise that surrounds most topics online which is something I will definitely remember the next time I am searching for an answer to anything.
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Appreciate that you did not pad this with fluff to hit a word count, the post says what it needs to say and stops, and a look at kilocore did the same, brevity here feels intentional not lazy which is a distinction many writers miss completely sometimes when they are working under deadlines.
Now recognising that this site has earned a place in the small group of resources I treat as authoritative, and a stop at futurebuyarena confirmed that placement, the difference between resources I trust and resources I just consume is real and this site has clearly moved into the trusted category through consistent quality over time.
Reading this in a quiet hour and finding it suited the quiet, and a stop at mystichorizonstore extended the quiet reading mood, content that matches its own optimal reading conditions rather than fighting them is content that has been thoughtfully calibrated and this site reads as having a particular reading mood in mind throughout.
В статье по вопросам здоровья мы рассматриваем актуальные проблемы, с которыми сталкивается общество. Обсуждаются заболевания, факторы риска и важные аспекты профилактики. Читатели получат полезные советы о том, как сохранить здоровье и улучшить качество жизни.
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A clean read with no irritations, and a look at declume continued that frictionless quality, the absence of small irritations is something I notice only when present elsewhere and this site is one of the rare places where everything just works and lets me focus on the substance rather than fighting the format.
Recommended without hesitation if you care about careful coverage of this topic, and a stop at amberlume reinforced the recommendation, the bar I set for unhesitating recommendations is fairly high and this site has cleared it through the cumulative weight of multiple consistently good pieces rather than through any single standout post which is meaningful.
Worth flagging that the post handled an angle of the topic I had not seen elsewhere, and a look at pixelharvest extended that fresh treatment, content that finds underexplored corners of well covered subjects is genuinely valuable and this site has demonstrated that exploratory editorial approach across multiple pieces in my reading sessions today.
Felt the post had been quietly polished rather than aggressively styled, and a look at voltcard confirmed the same understated polish, sites whose quality reveals itself slowly rather than announcing itself loudly are the kind I trust more deeply because the trust is not based on first impressions of marketing but actual substance.
Reading this gave me a small mental break from the heavier reading I had been doing, and a stop at rustflow extended that lighter feel, content that provides relief without becoming trivial is harder to produce than people realise and this site has clearly figured out how to be light without being shallow at all.
Felt the writer was being honest with the reader which is rare enough that I want to acknowledge it, and a look at zapscan continued that honest feel, content built on actual knowledge rather than aggregated summaries is something I value highly and rarely come across in regular searches on the open internet these days.
Now adding this to a list of sites I want to see flourish, and a stop at silkmint reinforced that wish, the few sites I actively root for are sites that produce the kind of work I want more of in the world and this one has joined that small list based on what I have read so far.
Quiet confidence runs through the whole post, no need to shout to make the points stick, and a stop at velvetpinecollective carried that same restrained voice forward, content that respects the reader by trusting its own substance rather than dressing it up in theatrical language is what I look for online and rarely actually find these days.
My reading list is short and selective and this site is now on it, and a stop at opalshorecollective confirmed the placement, the short list of sites I read deliberately rather than encounter accidentally is something I curate carefully and adding to it is a real act of trust which this site has earned today.
Most blog writing on this subject reaches for the same handful of arguments and this post avoided them, and a look at ampblip continued the original treatment, content that finds its own path through territory other writers have flattened is content with real authorial energy and this site has plenty of that distinctive energy.
My usual pattern is to skim and bounce but this site has reset that pattern temporarily, and a stop at rustkit maintained the slower reading mode, content that changes how I read is content with structural influence and this site has clearly nudged my reading behaviour toward something better at least for the duration of these visits.