Linux 4.20 is Running Slower Than 4.19 On Intel CPUs (phoronix.com)
Freshly Exhumed writes: An intentional kernel change in Linux kernel 4.20 for enhanced Spectre mitigation is unfortunately causing Intel Linux performance to be much slower than with 4.19. That change is 'STIBP' (Single Thread Indirect Branch Predictors), which allows for preventing cross-hyperthread control of decisions that are made by indirect branch predictors. It affects Intel systems that have up-to-date microcode and CPU Hyper Threading enabled. Phoronix gives the evidence.
Let the class action lawsuits begin?
It's just high.
There's a joke here somewhere. If I weren't so stoned...
They say the first thing to go is your penis. Well, it's either that or your brain. I forget which...
Should we want FAST we SHOULD want MEAN, VILE, DISGUSTING Linus. Pudding has been eaten. Proof has been had.
This is what Linux gets for pushing a CoC. Linus' kool aid drinking has finally proven his lack of judgement in a way BitKeeper, the scsi subsystems, and assigning Greg KH as stable maintainer haven't.
Can this be disabled with modules or would it need a flag and a recompile of the kernel?
See subject: APK Hosts File Engine 3.0++ 64-bit for Linux/BSD h t t p : / / a p k . i t - m a t e . c o . u k / A P K H o s t s F i l e E n g i n e F o r L i n u x . z i p
Yields more security/speed/reliability/anonymity vs. any 1 solution (99% of threats use hostnames vs. IP address most firewalls use) more efficiently/FASTER + NATIVELY 4 less!
Vs. "Bolt on 'MoAr' illogic-logic" slowing u hosts speed u up 2 ways: Adblocks + Hardcode fav. sites u spend most time @ vs. competition loaded w/ security bugs (DNS/AntiVir) + overheads slowing u (messagepass 'souled-out' to advertisers easily detected & blocked addons + firewall filtering drivers) & their complexity leads to exploit!
* ONLY 1 of its kind in GUI 4 Linux/BSD & supports port filters!
APK
P.S.=> Protects vs. all speculative execution exploits + scripts/trackers (faster vs. NoScript @ kernelmode level)/ads/DNS request tracking + redirect poisoned or downed DNS/botnets/malware/malcript/email malicious payloads... apk
You're still gonna do your banking over encrypted channels. And use fixed length arrays or at least bounds checks.
This headline seems to come from the mindset that we always act like Joe Sixpack has.
(In reality, the average person out there cares just as much about security and privacy. They just know less about it and have less of a choice with "simple" products anyway. Buut you'll get them there, if you keep pushing that meme. Just like Justin Bieber was made popular mostly by everyone hating him [including me].)
But go ahead, and keep using the old kernel. Don't be surprised if your IP block is suddenly blocked though, when your zombie computer starts spreading crap. Or if go to prison for child pornography when somebody finds out what it spread.
Wooohooo!
Linux kernel doesn't let your insecure and sloppy design do things that compromise the security of the OS. Sounds like a feature to me.
Who still runs Linux on Intel CPUs?
...running slower and secure or faster and compromised ?
If you think faster is better then you're a moron that should not have access to a computer!
AMD for the WIN!! will apple move mac pro over?
1st U FAIL a PORTFILTERING TEST https://yro.slashdot.org/comme... & Hosts can stop portsmash (blocking downloads of it) "You basically have to already be able to run your own evil code on a machine in order to PortSmash it." from https://www.theregister.co.uk/... (IF hosts could DO that, I'd implement it in my work & I STOP THAT RUMOR/ERROR - test for yourself & see using my program).
* In fact, hosts MAY prevent the OTHER forms of Intel CPU weakness per ACADEMIC RESEARCH I read:
SPECTRE "As an attempted mitigation for our JavaScript-based attack" https://spectreattack.com/spec...
MELTDOWN "We presented Meltdown, a novel software-based attack" https://meltdownattack.com/mel...
APK
P.S.=> Like portsmash? The academics NEEDED TO RUN CODE LOCALLY also to harm you via Spectre/Meltdown (or even portsmash) the ONLY thing I question would be can something like RPC make them work (that MAY be considered 'remote'))... apk
Zach Paterson/ZIP + c6gunner 'Greatest Hits': "I'm a much better programmer than APK" - by Anonymous Coward ZIP on Monday October 08, 2018 @11:27PM (#57449082)
BIG TALK - ZIP has no programs to show as proof.
I do https://news.slashdot.org/comm...
(From registered /.ers liking/using/praising my work + 100k users worldwide)
ZIP tried to take credit for what I solved before him https://tech.slashdot.org/comm...
He codes? He can't EVEN READ!
I show 2 ways to do it YOURSELF https://tech.slashdot.org/comm... - he can't.
Delphi/FreePascal/ObjectPascal HAS no null-term'd string bufferoverflows https://developers.slashdot.or... - C does, C++ can UNLESS you do what I said 1st.
He likes CODE SIGNING (it's been STOLEN & ABUSED) https://www.helpnetsecurity.co...
MY METHOD CAN'T BE (upmodded +2 INTERESTING in CODING FOR DEFCON) https://it.slashdot.org/commen...
ZIP says he has no /. acct "I don't have an account so I don't have mod points" https://news.slashdot.org/comm...
Yet ZIP says he downmods me (IMPOSSIBLE w/ no /. acct.): "I down-modded a few of your post" - by Anonymous Coward "ZIP" on Thursday October 11, 2018 @11:31AM (#57461058)
APK
P.S.=> KEEP IMPERSONATING ME like https://science.slashdot.org/c... (I'd never say that OR bitch to do-NOTHING "ne'er-do-wells" like ZIP OR c6gunner https://linux.slashdot.org/com... (he 1st mocked me & impersonated me TWISTING /.ers words & after I FAIRLY challenged him to show HE DID BETTER & that his response (weak))!
The above EXPOSES your BLOWHARD incompetence... apk
Yeah, it doesn't make sense at all. ;)
"Truth is what works" -- William James "It works!!" -- o-dark-AM comment
"I'm a much better programmer than APK" - by Anonymous Coward ZIP on Monday October 08, 2018 @11:27PM (#57449082)
BIG TALK - ZIP has no programs to show as proof.
I do https://news.slashdot.org/comm...
(From registered /.ers liking/using/praising my work + 100k users worldwide)
ZIP tried to take credit for what I solved before him https://tech.slashdot.org/comm...
He codes? He can't EVEN READ!
I show 2 ways to do it YOURSELF https://tech.slashdot.org/comm... - he can't.
Delphi/FreePascal/ObjectPascal HAS no null-term'd string bufferoverflows https://developers.slashdot.or... - C does, C++ can UNLESS you do what I said 1st.
He likes CODE SIGNING (it's been STOLEN & ABUSED) https://www.helpnetsecurity.co...
MY METHOD CAN'T BE (upmodded +2 INTERESTING in CODING FOR DEFCON) https://it.slashdot.org/commen...
ZIP says he has no /. acct "I don't have an account so I don't have mod points" https://news.slashdot.org/comm...
Yet ZIP says he downmods me (IMPOSSIBLE w/ no /. acct.): "I down-modded a few of your post" - by Anonymous Coward "ZIP" on Thursday October 11, 2018 @11:31AM (#57461058)
APK
P.S.=> KEEP IMPERSONATING ME like https://science.slashdot.org/c... (I'd never say that OR bitch to do-NOTHING "ne'er-do-wells" like ZIP OR c6gunner https://linux.slashdot.org/com... (he 1st mocked me & impersonated me TWISTING /.ers words & after I FAIRLY challenged him to show HE DID BETTER & that his response (weak))!
The above EXPOSES your BLOWHARD incompetence... apk
You can easily disable this patch with a boot command-line argument. Unless you are running a heavily VM-ed data center with shit for security, why would you cripple your system over the most esoteric hacks known to man and that - Oh! By the way! - require that you are running malware on your system already? (And spare me the horseshit about JS - that can ONLY happen in a carefully crafted environment.)
There is now a price to pay. Not really a surprise.
Most ACs are not even worth the keystrokes to insult them. Be generically insulted by this and ignored otherwise.
1st U FAIL a PORTFILTERING TEST https://yro.slashdot.org/comme... (IF hosts could do it I'd implement it in my work & I STOP THAT ERROR: Test for yourself & see using my program) & Hosts can stop portsmash (blocking downloads of it) "You basically have to already be able to run your own evil code on a machine in order to PortSmash it." from https://www.theregister.co.uk/...
* In fact, hosts MAY prevent the OTHER forms of Intel CPU weakness per ACADEMIC RESEARCH I read:
SPECTRE "As an attempted mitigation for our JavaScript-based attack" https://spectreattack.com/spec...
MELTDOWN "We presented Meltdown, a novel software-based attack" https://meltdownattack.com/mel...
APK
P.S.=> Like portsmash? Academics NEEDED TO RUN CODE LOCALLY like portsmash which hosts can prevent to harm you via Spectre/Meltdown - & the ONLY thing I question would be can something like RPC make them work (that MAY be considered 'remote')... apk
Zach Paterson/ZIP + c6gunner 'Greatest Hits': "I'm a much better programmer than APK" - by Anonymous Coward ZIP on Monday October 08, 2018 @11:27PM (#57449082)
BIG TALK - ZIP has no programs to show as proof.
I do https://news.slashdot.org/comm...
(From registered /.ers liking/using/praising my work + 100k users worldwide)
ZIP tried to take credit for what I solved before him https://tech.slashdot.org/comm...
He codes? He can't EVEN READ!
I show 2 ways to do it YOURSELF https://tech.slashdot.org/comm... - he can't.
Delphi/FreePascal/ObjectPascal HAS no null-term'd string bufferoverflows https://developers.slashdot.or... - C does, C++ can UNLESS you do what I said 1st.
He likes CODE SIGNING (it's been STOLEN & ABUSED) https://www.helpnetsecurity.co...
MY METHOD CAN'T BE (upmodded +2 INTERESTING in CODING FOR DEFCON) https://it.slashdot.org/commen...
ZIP says he has no /. acct "I don't have an account so I don't have mod points" https://news.slashdot.org/comm...
Yet ZIP says he downmods me (IMPOSSIBLE w/ no /. acct.): "I down-modded a few of your post" - by Anonymous Coward "ZIP" on Thursday October 11, 2018 @11:31AM (#57461058)
APK
P.S.=> KEEP IMPERSONATING ME like https://science.slashdot.org/c... (I'd never say that OR bitch to do-NOTHING "ne'er-do-wells" like ZIP OR c6gunner https://linux.slashdot.org/com... (he 1st mocked me & impersonated me TWISTING /.ers words & after I FAIRLY challenged him to show HE DID BETTER & that his response (weak))!
The above EXPOSES your BLOWHARD incompetence... apk
I only post on hosts IF they stop threats OR speed you up. I don't off topic. HOWEVER: I won't "lay down" to a bunch of losers that don't do a DAMN THING OF VALUE (I do) - I'll defend myself w/ facts they can't beat.
I've got my own "psycho fanclub" IMPERSONATING me & spamming + lying about MY work STALKING me constantly by UNIDENTIFIABLE anonymous posts like whackos!
Especially GOOFS like c6gunner CAUGHT IMPERSONATING ME https://linux.slashdot.org/com...
(His name's on that post link as the SUBMITTER yet signing "APK" as I do while he ALTERED users words of praise of my work (since he tried INSULTING me & I simply issued a FAIR CHALLENGE to him that HE SHOW HE CAN DO BETTER - he hasn't to date & NEVER will (wannabe))).
ZIP is a FOOL & A LIAR vs. https://linux.slashdot.org/com...
APK
P.S.=> I'm not here to lose (that's for LOSERS like ZIP &/or c6gunner - not I): I'm here to WIN & everyone does that uses hosts files ... apk
So technically not ALL Intel cpus.. I finally dodged one of the many bullets, I should buy a lottery ticket.
Comment removed based on user account deletion
Fuck Intel.
Did you take it in the ass from the Jews? Oh, no? You suck their dicks and eat their assholes? WTF! Gross.
I'll bet you kiss the blow-up doll of Adolph Hitler you keep hidden in your mom's basement.
Your Mom tried to have Joseph Mengele sew her legs shut when you were being born so you couldn't emerge into the world, but, the damn Allies overtook Berlin first and you were able to escape.
Intel CPUs performance suffers for its bug mitigation in linux kernel 4.20.
See subject: I'm so sick & tired of /. BULLIES. You shitweasels have nothing better to do than HARASS, STALK & IMPERSONATE little ol' me. I've done absolutely NOTHING wrong & just try to make everyone's lives better w/ my work that stops ads & malware.
* As soon as I post, I'm CENSORED to -1 w/ ABUSED downmodpoints by bullies like ZIP, who even admit to this. I caught c6gunner mocking then IMPERSONATING me when he forgot to log out. Zontar mailed me a postcard w/ THREATS on it, then LIES & STALKS me. All because you JEALOUS JOWIE "ne'er-do-wells" KNOW I'm World-Class & you're shit. It's why you hide behind FAKE names & UNIDENTIFIABLE ANONYMOUS.
I'm even improving my already GREAT PHYSIQUE by getting calf implants while you weezils sit around all day on /. STALKING & HARASSING your BETTERS. I repeatedly dust the no-mind bullshit blatherings you BULLIES post to attack me. Like always I WIN & YOU LOSE.
APK
P.S.=> This BULLYING of me is SO UNFAIR & is probably a HATE CRIME because I'm gay. GROW UP... apk
After the disaster that was Netburst (Intel's race to 10GHz with insanely long pipelines and insanely large L2 caches), Intel changed direction by updating the Pentium 3 architecture with all the best ideas AMD had to offer (legal under the cross-patent agreement - and AMD insanely copied Netburst for their godawful Bulldozer family).
But at the same time, Thanks to AMD's innovations (true dual core AND x64), Intel was forced to follow in AMD's footsteps. This meant, for the first time, more than one thread running at the same time on an Intel chip.
Here's the punchline. The ONLY correct way to do this is "lock and key"- that is to say each thread has a 'key' (unique id) that is used to 'unlock' memory resources exclusive to that thread. Intel NEVER implemented this syetm in hardware, having come to a SECRET agreement with Microsoft to leave such security enirely with the OS. As a result Intel chip could clock faster, use less power, and have lower memory latencies- giving them massive advantages over AMD (a company which did implement thread memory access security in hardware).
It gets worse. Intel, effectively fully controlled by Izreal at that time, sold the faulty design as a security backdoor to Izreali intelligence, and the NSA and GCHQ. This made Intel a security asset, and guaranteed governmental action to protect their broken-by-design strategy that significantly advantaged them over AMD CPUs.
Even today, AMD's utterly amazing Zen architecture suffers from clock deficiency and memory latency deficiency when compared to the latest- still entirely broken- Intel Coffeelake parts. Tho today the real backdoor is the OTHER CPU systems built into AMD and Intel parts- Small CPUs with their own ojn chip memory that communicate via a low speed wireless interface to specialist NSA equipment broadcasting within range. Even if your computer lacks bluetooth and 'wireless', your AMD or Intel CPU can still be remotely connected to if the computer has at least stand-by power.
Intel's lack of thread security just makes it easier for rogue code to take over your entire machine when booted. And these days that rogue code is usually from criminal gangs with associates in Izreali intelligence.
Obviously very few people are targets for this type of NSA intrusion- and terrorising whole nations (like Iran) is better done using more ordinary trojan methods. But the point remains that your current or older Intel CPU is pure cr-p because of Deep State terror desires.
The ONLY way to fix an Intel chip is to run one thread at a time (not one thread per core- one thread PER CHIP), and do a complete chip state flush between thread swaps. This would lower performance by a truly astonishing degree tho.
Old, vulgar Linus would have never allowed that!
"I'm a much better programmer than APK" - by Anonymous Coward ZIP on Monday October 08, 2018 @11:27PM (#57449082)
BIG TALK - ZIP has no programs to show as proof.
I do https://news.slashdot.org/comm...
(From registered /.ers liking/using/praising my work + 100k users worldwide)
ZIP tried to take credit for what I solved before him https://tech.slashdot.org/comm...
He codes? He can't EVEN READ!
I show 2 ways to do it YOURSELF https://tech.slashdot.org/comm... - he can't.
Delphi/FreePascal/ObjectPascal HAS no null-term'd string bufferoverflows https://developers.slashdot.or... - C does, C++ can UNLESS you do what I said 1st.
He likes CODE SIGNING (it's been STOLEN & ABUSED) https://www.helpnetsecurity.co...
MY METHOD CAN'T BE (upmodded +2 INTERESTING in CODING FOR DEFCON) https://it.slashdot.org/commen...
ZIP says he has no /. acct "I don't have an account so I don't have mod points" https://news.slashdot.org/comm...
Yet ZIP says he downmods me (IMPOSSIBLE w/ no /. acct.): "I down-modded a few of your post" - by Anonymous Coward "ZIP" on Thursday October 11, 2018 @11:31AM (#57461058)
APK
P.S.=> KEEP IMPERSONATING ME like https://science.slashdot.org/c... (I'd never say that OR bitch to do-NOTHING "ne'er-do-wells" like ZIP OR c6gunner https://linux.slashdot.org/com... (he 1st mocked me & impersonated me TWISTING /.ers words & after I FAIRLY challenged him to show HE DID BETTER & that was his response (weak))!
Above EXPOSES your BLOWHARD incompetence... apk
I thought Google had figured out a patch to circumvent this at the OS level that had negligible impact on performance?
My Other Computer Is A Data General Nova III.
I never pay that much attention to benchmark numbers. I don't max my PC out for much so incremental differences are hardly something noticeable. Yeah you can definitely argue a good 10 to 15% loss from everything added together with regards to Spectre/meltdown fixes.
Seems to me Google came up with Retpoline which some Linux OS run with minor performance hits. Even Windows 10 will implement this in Spring release. Wonder why all Linux desktop OS don't implement Retopline?
Your presence on earth are not welcome. Please leave. Preferably by slitting your own throat and drowning in your own blood.
Be careful not to cut the dick off the guys penis that is down your throat though.
— the gerald butler impersonator
1st U FAIL a PORTFILTERING TEST https://yro.slashdot.org/comme... (IF hosts could DO it I'd implement it in my work & I STOP THAT ERROR - test for yourself & see using my program) & Hosts can stop portsmash (blocking downloads of it) "You basically have to already be able to run your own evil code on a machine in order to PortSmash it." from https://www.theregister.co.uk/...
* In fact, hosts MAY prevent the OTHER forms of Intel CPU weakness per ACADEMIC RESEARCH I read:
SPECTRE "As an attempted mitigation for our JavaScript-based attack" https://spectreattack.com/spec...
MELTDOWN "We presented Meltdown, a novel software-based attack" https://meltdownattack.com/mel...
APK
P.S.=> Like portsmash? Academics NEEDED TO RUN CODE LOCALLY like portsmash which hosts can prevent to harm you via Spectre/Meltdown - & the ONLY thing I question would be can something like RPC make them work (that MAY be considered 'remote')... apk
Zach Paterson/ZIP + c6gunner 'Greatest Hits': "I'm a much better programmer than APK" - by Anonymous Coward ZIP on Monday October 08, 2018 @11:27PM (#57449082)
BIG TALK - ZIP has no programs to show as proof.
I do https://news.slashdot.org/comm...
(From registered /.ers liking/using/praising my work + 100k users worldwide)
ZIP tried to take credit for what I solved before him https://tech.slashdot.org/comm...
He codes? He can't EVEN READ!
I show 2 ways to do it YOURSELF https://tech.slashdot.org/comm... - he can't.
Delphi/FreePascal/ObjectPascal HAS no null-term'd string bufferoverflows https://developers.slashdot.or... - C does, C++ can UNLESS you do what I said 1st.
He likes CODE SIGNING (it's been STOLEN & ABUSED) https://www.helpnetsecurity.co...
MY METHOD CAN'T BE (upmodded +2 INTERESTING in CODING FOR DEFCON) https://it.slashdot.org/commen...
ZIP says he has no /. acct "I don't have an account so I don't have mod points" https://news.slashdot.org/comm...
Yet ZIP says he downmods me (IMPOSSIBLE w/ no /. acct.): "I down-modded a few of your post" - by Anonymous Coward "ZIP" on Thursday October 11, 2018 @11:31AM (#57461058)
APK
P.S.=> KEEP IMPERSONATING ME like https://science.slashdot.org/c... (I'd never say that OR bitch to do-NOTHING "ne'er-do-wells" like ZIP OR c6gunner https://linux.slashdot.org/com... (he 1st mocked me & impersonated me TWISTING /.ers words & after I FAIRLY challenged him to show HE DID BETTER & that was his response (weak))!
Above EXPOSES your BLOWHARD incompetence... apk
I've just discovered that my penis is leaking fondant. At least it's tasty.
Probably slower cuz it is stoned ...
TempleOS FTW
Linus broke userspace? The users that are impacted will need a lot of mustard to choke down this shit sandwich. Intel needs to get off of their ass and at least tell us something instead of sending us down huxter highway with their next bullshit broken part.
The slowdowns are part of a planned obsolence, sales are down and the industry lies and fakes almost everything to get a new sale.
That includes ruining existing hardware with so called security bugs that need fixing while on the backdoor-side more exploits are added.
The industry thinks everyone is stupid, like they are themselves. People thinking they are fooling others when they are not.
That's right, they made their name by knowingly using bugged technology. "See how fast our cpu are !! We are the fastest..."
When those bugs get patched, they are no longer the fastest with the highest IPC count ..and so on.
Who will punish them for those blatant lies ? Sue em and fine them till kingdom come.
So, abandon systemd? There is nearly a hundred distros NOT using it, what are you waiting for? http://without-systemd.org/
Artix
Your Linux, your init.
1st U FAIL a PORTFILTERING TEST https://yro.slashdot.org/comme... (IF hosts could DO it I'd implement it in my work & I STOP THAT ERROR - test for yourself & see using my program) & Hosts can stop portsmash (blocking downloads of it) "You basically have to already be able to run your own evil code on a machine in order to PortSmash it." from https://www.theregister.co.uk/...
* In fact, hosts MAY prevent the OTHER forms of Intel CPU weakness per ACADEMIC RESEARCH I read:
SPECTRE "As an attempted mitigation for our JavaScript-based attack" https://spectreattack.com/spec...
MELTDOWN "We presented Meltdown, a novel software-based attack" https://meltdownattack.com/mel...
APK
P.S.=> Like portsmash? Academics NEEDED TO RUN CODE LOCALLY like portsmash which hosts can prevent harm to you via Spectre/Meltdown - & the ONLY thing I question would be can something like RPC make them work (that MAY be considered 'remote')... apk
Zach Paterson/ZIP + c6gunner 'Greatest Hits': "I'm a much better programmer than APK" - by Anonymous Coward ZIP on Monday October 08, 2018 @11:27PM (#57449082)
BIG TALK - ZIP has no programs to show as proof.
I do https://news.slashdot.org/comm...
(From registered /.ers liking/using/praising my work + 100k users worldwide)
ZIP tried to take credit for what I solved before him https://tech.slashdot.org/comm...
He codes? He can't EVEN READ!
I show 2 ways to do it YOURSELF https://tech.slashdot.org/comm... - he can't.
Delphi/FreePascal/ObjectPascal HAS no null-term'd string bufferoverflows https://developers.slashdot.or... - C does, C++ can UNLESS you do what I said 1st.
He likes CODE SIGNING (it's been STOLEN & ABUSED) https://www.helpnetsecurity.co...
MY METHOD CAN'T BE (upmodded +2 INTERESTING in CODING FOR DEFCON) https://it.slashdot.org/commen...
ZIP says he has no /. acct "I don't have an account so I don't have mod points" https://news.slashdot.org/comm...
Yet ZIP says he downmods me (IMPOSSIBLE w/ no /. acct.): "I down-modded a few of your post" - by Anonymous Coward "ZIP" on Thursday October 11, 2018 @11:31AM (#57461058)
APK
P.S.=> KEEP IMPERSONATING ME like https://science.slashdot.org/c... (I'd never say that OR bitch to do-NOTHING "ne'er-do-wells" like ZIP OR c6gunner https://linux.slashdot.org/com... (he 1st mocked me & impersonated me TWISTING /.ers words & after I FAIRLY challenged him to show HE DID BETTER & that was his response (weak))!
Above EXPOSES your BLOWHARD incompetence... apk
... intel finally being punished... for their cheats... now their chips are truely junky/slowly...wieeeeee
further spectre mitigation code is causing these slow down issues.
it's discussed in a follow up phoronix article.
On a long enough timeline, the survival rate for everyone drops to zero.