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.
Cuts through the usual marketing fluff that dominates this topic online, and a stop at startwithpurpose kept the same clean approach going, this is the kind of writing that respects the reader’s time rather than wasting it on repetitive setups before finally getting to the point at hand which is what most sites do.
Now thinking the topic is more interesting than I had given it credit for, and a stop at exploreideaswithpurpose continued that elevated interest, content that revives my curiosity about subjects I had set aside is doing genuine work in the structure of my interests and this site is providing that revivifying effect today actually.
Reading this in the gap between work projects was a small but meaningful break, and a stop at findyourgrowthlane extended that gentle reset, content that provides genuine refreshment rather than just distraction during work breaks is content with a particular kind of utility and this site fits that role for me reliably during work days.
Without comparing too aggressively to other sources this one stands out for the right reasons, and a look at learnandscale continued that distinctive quality, content that distinguishes itself through substance rather than style tricks is content with lasting differentiation and this site has clearly chosen substance based differentiation as its core editorial strategy.
A welcome reminder that thoughtful writing still happens online, and a look at explorefreshgrowthideas extended that reassurance, the modern web makes it easy to forget that careful writing exists and finding sites that practice it is a small antidote to the cynicism that builds up from too much exposure to algorithmic content.
Reading this prompted me to dig into a related topic later, and a stop at buildsustainablemomentum provided some of the starting points for that follow up reading, content that triggers further exploration rather than satisfying curiosity completely is content with real generative energy and this site has plenty of that energy throughout it.
Stayed longer than planned because each section earned the next, and a look at startnextlevelgrowth kept that pulling effect going across more pages, the kind of subtle pull that good writing exerts on attention is something I find harder and harder to resist when I encounter it on the open web today.
Probably worth setting aside a longer block to read more carefully than I can right now, and a stop at exploreideaswithpurpose confirmed the longer block plan, the impulse to schedule dedicated time for a sites archive is itself a measure of trust and this site has earned that scheduling impulse from me clearly today actually.
Reading this gave me a small jolt of recognition for an experience I thought was just mine, and a stop at startthinkingclearly produced more such jolts, content that universalises private experiences without flattening them is doing genuinely useful work and this site is providing that recognition function for me reliably across topics I read.
Really appreciate that the writer did not assume I would read every other related post first, and a look at inobrisk kept that self contained feel going where each piece can stand alone, accessibility for new readers is a sign of generous editorial thinking and this site has clearly invested in that approach.
Reading this confirmed that my time researching the topic in other places had not been wasted, and a stop at explorefreshthinkingnow extended the confirmation, when independent sources agree that is a useful signal and this site is one of the more reliable sources I have found for cross checking what I read elsewhere on similar subjects.
Now setting aside time on my next free afternoon to read more from the archives, and a stop at startnextlevelgrowth confirmed that time will be well spent, the rare site whose archive deserves a dedicated reading session rather than just casual sampling is the kind of resource worth scheduling around and this one qualifies clearly.
Bookmark added without hesitation after finishing, and a look at exploreideaswithpurpose confirmed I should bookmark the homepage too rather than just this page, the rare site that earns category level trust rather than just single article approval is the kind I want to rely on across many different topics over time.
Considered as a whole this site has developed a coherent point of view that comes through in individual pieces, and a look at growyourcapabilities continued displaying that coherence, sites with a unified perspective rather than a grab bag of takes are sites with editorial maturity and this one has clearly developed that maturity through years of work.
A piece that did not waste any of its substance on sales or promotion, and a look at discovernewmomentum continued that pure content focus, sites that resist the urge to monetise every paragraph are increasingly rare and this one has clearly made the editorial choice to keep the writing clean from commercial intrusion which I value highly.
Yet another issue is really that video gaming has become one of the all-time main forms of recreation for people of various age groups. Kids engage in video games, plus adults do, too. The XBox 360 is amongst the favorite gaming systems for many who love to have a lot of video games available to them, as well as who like to experiment with live with other individuals all over the world. Thanks for sharing your opinions.
Now noticing that the post never raised its voice even when making a strong point, and a look at startyournextphase 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.
мелбет приложение мелбет приложение
Now sitting with the thoughts the post triggered rather than rushing on to the next thing, and a stop at seomagnet extended that reflective pause, content that earns time for thought after closing the tab is content of higher value than the merely interesting and this site has clearly produced that lasting effect today.
Reading this prompted a brief but useful conversation with a colleague who happened to walk by, and a stop at growyourcapabilities extended that conversational seed, content that becomes a starting point for in person discussion rather than ending in solitary reading is content with social generative energy and this site has plenty of it apparently.
Most of the time I feel the open web is in decline and then I find a site like this, and a stop at createpositiveoutcomes reinforced that mood lift, the cumulative effect of finding occasional excellent independent content versus the cumulative effect of finding mostly mediocre content is real for the long term reader maintaining web habits today.
Liked the balance between depth and brevity, never too shallow and never too long, and a stop at discovercreativepaths kept the same balance going across the rest of the site, this is one of the harder skills in writing and the team here clearly has it figured out very well indeed across every page.
Picked a friend mentally as the audience for this and decided to send the link, and a look at learnandprogresssteadily confirmed the send was the right choice, choosing whom to share content with is a small act of curation that I take more seriously than the public sharing most platforms encourage these days online.
Skipped lunch to finish reading, which says something, and a stop at startpurposefuljourney kept me at my desk longer than planned, when content beats the lunch impulse the writer has done something genuinely impressive in an attention environment full of immediately satisfying alternatives competing for the same finite block of reader time.
Decent post that improved my afternoon a small amount, and a look at buildclarityforward added a bit more to that, sometimes the small wins online add up over time and a useful site like this one is the kind of place that contributes consistently to those small wins for me lately across many different topics I follow.
Looking forward to seeing what gets published next month, and a look at createpositiveoutcomes extended that anticipation across the broader site, finding myself looking forward to a sites future content rather than just consuming its existing content is a stronger commitment level than I usually reach with new finds and this site triggered that.
скачать мелбет на андроид скачать мелбет на андроид
Liked the balance between depth and brevity, never too shallow and never too long, and a stop at startpurposefuljourney kept the same balance going across the rest of the site, this is one of the harder skills in writing and the team here clearly has it figured out very well indeed across every page.
Quality writing that respects the reader’s intelligence without overloading them, and a quick look at discovercreativepaths 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.
Now appreciating that the post left me with enough to say in a follow up conversation, and a look at irotix added more material for those follow ups, content that prepares me for related conversations rather than just informing me alone is content with social utility and this site provides that social armament reliably for me.
Easily one of the better explanations I have read on the topic, and a stop at explorefreshthinkingpaths pushed it even higher in my mental ranking of useful resources, the kind of site that beats the average not by trying harder but by simply caring more about what it puts out daily which always shows.
Will be passing this along to a few people who would benefit from the perspective shared here, and a stop at husbury only added to what I will be sharing, this kind of generous content deserves to circulate widely rather than getting buried in some search engine algorithm tweak that pushes it down the rankings.
Reading this confirmed a hunch I had been carrying about the topic without having articulated it, and a stop at discoverforwardideas extended the confirmation, content that gives shape to fuzzy intuitions is doing the rare work of making private thoughts public and this site is providing that articulating service consistently for me lately.
Worth recognising that the post handled a familiar topic without reaching for any of the obvious hot takes, and a stop at irotix continued that fresh treatment, sites that find new angles on subjects others have exhausted are sites worth following carefully and this one has clearly developed that exploratory instinct through patient practice.
A welcome reminder that thoughtful writing still happens online, and a look at growwithfocusedsteps extended that reassurance, the modern web makes it easy to forget that careful writing exists and finding sites that practice it is a small antidote to the cynicism that builds up from too much exposure to algorithmic content.
Really thankful for posts that respect a reader’s time, this one does, and a quick look at growfocusedexecution was the same, no need to scroll through endless intros just to get to the actual content, that approach alone is enough reason to come back here regularly for the kind of writing offered.
Came away feeling slightly smarter than I was when I started, that is a real win, and a stop at growwithfocusedsteps added a bit more to that, the rare site that actually transfers some of its knowledge to the reader in a way that sticks rather than just creating an illusion of learning briefly.
Now wishing more sites covered topics with this level of care, and a look at findgrowthsolutions extended that wish across more subjects, the rarity of careful coverage on most topics is a problem and this site is one of the small antidotes to that broader pattern of casual or surface treatment of complex subjects.
Now wishing I had found this site sooner, and a look at seomotion extended that mild regret, the calculation of how many years of good content I missed by not finding the right sources earlier is one I try not to make too often but it does come up sometimes when I find sites this good.
Народ, если кто искал, толковый разбор. Выкладываю, чтобы не потерялось, делюсь полезной ссылкой: скачать мелбет.
Этот букмекер сейчас один из лучших, выбор спортивных дисциплин впечатляет. Порадовало, что трансляции матчей идут без задержек.
Если только заводите аккаунт капает бонус на баланс, что очень даже кстати. Пишите, если возникнут вопросы.
Reading this gave me a quiet moment of intellectual pleasure that I had not been expecting, and a stop at growwithstrongintent extended that pleasure across more pages, the unexpected reward of stumbling into careful writing is one of the small ongoing pleasures of reading the open web and this site is delivering it reliably.
Now realising the topic deserved better treatment than it has been getting elsewhere, and a look at irubelt extended that broader recognition, content that exposes the gap between actual quality and average quality elsewhere is doing the quiet work of raising standards and this site is contributing to that elevation in its own corner.
Found this through a friend who recommended it and now I see why, and a look at holzix only strengthened that recommendation in my own mind, word of mouth still works for content that actually delivers and this site is clearly earning recommendations the old fashioned way through quality rather than marketing.
Just one of those reads that left me feeling slightly more capable rather than overwhelmed, and a look at buildlongtermfocus kept that empowering feel going, the difference between content that builds the reader up and content that intimidates them is huge and this site clearly knows which side of that line to stand.
Thanks for treating the topic with the seriousness it deserves without becoming pompous about it, and a stop at explorefuturevisions continued that balanced treatment, the gap between earnest and self serious is huge and writers who can stay on the right side of it earn my respect when I find them online today.
A relief to read something where I did not have to fact check every claim mentally, and a look at findbetterwaysforward continued that reliable feeling, sites where I can lower my guard and trust the content are rare and this one is earning that trust paragraph by paragraph through consistent careful work behind the scenes.
Useful reading material, the kind I can hand off to someone newer to the topic without worrying about confusing them, and a quick look at startmovingclearly confirmed the same beginner friendly tone runs throughout the site which is great for sharing with people just starting their learning journey on this particular topic.
Looking at this objectively the editorial quality is hard to deny even setting aside personal taste, and a stop at brightbanyan maintained the same objective quality, the gap between what I personally enjoy and what is objectively well crafted exists and this site clears both bars simultaneously which is rarer than it sounds.
Эта доказательная статья представляет собой глубокое погружение в успехи и вызовы лечения зависимостей. Мы обращаемся к научным исследованиям и опыту специалистов, чтобы предоставить читателям надежные данные об эффективности различных методик. Изучите, что работает лучше всего, и получите информацию от экспертов.
Открыть полностью – клиника плюс тверь
Quietly the writers approach to the topic differs from the dominant takes I have been encountering, and a stop at hyxarch extended that distinctive approach, content that maintains a different perspective without explicitly arguing against the dominant ones is content with confident editorial identity and this site has that confidence throughout pieces.