Showing posts with label memory. Show all posts
Showing posts with label memory. Show all posts
Tuesday, June 27, 2017
Difference Between SDRAM and DDR RAM Memory
Difference Between SDRAM and DDR RAM Memory
Before you know what is the Difference Between SDRAM and DDR SDRAM. You Must know First What Exactly the Meaning of Each type.
What is SDRAM?
Synchronous dynamic random access memory (SDRAM) is dynamic random access memory (DRAM) that is synchronized with the system bus. Classic DRAM has an asynchronous interface, which means that it responds as quickly as possible to changes in control inputs. SDRAM has a synchronous interface, meaning that it waits for a clock signal before responding to control inputs and is therefore synchronized with the computers system bus. The clock is used to drive an internal finite state machine that pipelines incoming instructions. This allows the chip to have a more complex pattern of operation than an asynchronous DRAM, enabling higher speeds.
What is DDR SDRAM?
Double data rate synchronous dynamic random access memory (DDR SDRAM) is a class of memory integrated circuits used in computers. DDR SDRAM (sometimes referred to as DDR1 SDRAM) has been superseded by DDR2 SDRAM and DDR3 SDRAM, neither of which are either forward or backward compatible with DDR SDRAM, meaning that DDR2 or DDR3 memory modules will not work in DDR equipped motherboards, and vice versa.
What is their Differences?
Dynamic Random Access Memory is used to temporarily store information on computers. DRAM is made up of many cells and each cell is referred to as a bit. A cell contains a capacitor and a transistor. Since computer machine language is made up of 1s and 0s, it has the value of one when active and zero when inactive.
SDRAM or Synchronous Random Access Memory is the result of DRAM evolution. This type of memory synchronizes the input and output signals with the system board. Its speed ratings are in MHz. SDRAM was introduced in 1996 and is still used today. SDRAM transmits every clock count at a specific time.
DDR RAM (or Double Data Rate Random Access Memory) does the same but it does so twice every clock count. This makes DDR RAM twice as fast as SDRAM. Over the years, RAM has become very fast and efficient -- and it will be exciting to see whats coming next.
The 184-pin DDR RAM-type memory has replaced the 168-pin SDRAM and is suited for computer processors that are 1GHz or higher.
The 168-pin SDRAM memory chip is not included in newly produced PCs (since 2007) and was used with processors lower than a gigahertz.
Theoretically 512 MHz Memory is 100% faster Than 256 MHz Memory is. In real life, the performance gain is much lower. If the change is worth it totally depends on the software you use. For your purpose, the only thing that will really run faster are Games. Not all games by the way, only those ones that use the higher Memory bandwidth.
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Saturday, June 3, 2017
Dishonored XB360 Stealthing its way out of my memory
Dishonored XB360 Stealthing its way out of my memory
As you found out from my Black Ops 2 review I recently learned that Redbox rents games, which is super helpful now that I am not gainfully employed at my local Derpstop, (thats a joke, nobody is gainfully employed there). But in this continued quest to branch and try games I dont normally play, and partially because the only other option was Borderlands 2 I decided to step into the steampunk universe of a game marketed out the ass in....
DISHONORED:(XB360)
In Dishonored you play as silent protagonist Corvo Attano, assassin and bodyguard to the empress Jessamine Kaldwin. The game picks up with Corvo returning from a dignitary mission to the surrounding foreign lands seeking aid from a plague infection affecting the Dunwall empire. After your boat docks you meet up with the empress and her daughter to report on your mission.
After a brief few seconds of conversation, teleporting assassins descend on you and you get a very quick crash course in the combat where you fend off 2 or 3, and then the empress is killed in front of you. The assassins make off with the empresss daughter Emily, and with her dying breath the empress implores you to find and save her. Of course this is shot immediately in the foot as Lord Regent enters and blames you for her murder and are promptly arrested.
Corvo is held and tortured for six months before the Lord Regent reveals that he was in on the murder and you will be executed to be made an example of. After being thrown your cell, you receive a letter and key from Empire Loyalists who help him escape and request his help to save Emily and return the empire to the proper bloodline.
Ok Bethesda Games, really? You know what? No. You guys are suspended from me ever trying your games again. This is now the 3rd game of yours Ive played where you start off as a silent protagonist who is captured and near executed before the game actually starts. I know it must be hard to write a story but you cant keep using the same goddamn opening for all of your fucking games and expect me to keep giving a shit.
So as the savvy gamer can already tell, this is going to be a first person western RPG like all Bethesda games are. But I will say this one breaks the established convention Ive come to expect out of this developer. At a glance, I could say that this game is the ungodly offspring of an orgy between Assassins Creed, Fable 3, Mirrors Edge, and Bioshock over a skeletal structure of a Bethesda RPG.
Its visual design definitely borrows the most from Fable 3. Lots of bright colors in a tightly confined steampunk city with character models that are seem a bit too cartoony for the violence this game has. They are a bit more grim and dark than say Fable 3s character models that look like they have been ripped from a Sims title. The game starts with one of those "set your brightness for the proper play visuals" but I dont know why its there. Pretty much every stage is brightly lit with little issues of visuals. One last little visual side note about the game, watching bodies getting picked to the bone by swarms of rats never loses its charm with me. That was fucking awesome.
Dishonoreds overall play style feels like a hybrid of the Assassins Creed and Mirrors Edge parkour. The problem I have with this is the game is strictly first person, and I feel that inhibits that style of running game play. They spruce things up by giving you different magical abilities like blink teleports which allow you to zip to the tops of ledges or from building to building or to swoop in for a kill.
It may be why the NPC guards that wander around seem to be kind of dopey and seem to have a pretty generous margin for error. But what bothers me is if they spot you once, it takes FOREVER for them to stop looking for you so you can complete your mission. It can be somewhat aggravating and even more so if you are trying to play the game via non-lethal methods.
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| One of the abilities allows you to see through walls so you can track your target better |
First person combat and I never get along. Even in games that I love that have it such as Left4Dead 2 the melee combat never feels as smooth as I would like it to. Admittedly, Dishonored probably has some of the cleanest first person combat I have played in a game but its still not great. Again, the margin for error seems kinda big here as guards really telegraph their attacks long enough for you to fumble your way to the block button and then allows you to mash the trigger all to hell. I did not have the game very long but I never felt I got to the point where I could fight without taking damage. Perhaps that is by design so you are forced to try to stealth around.
This is where Bioshocks meager influence pops up aside from the steampunk setting. Littered throughout the stage are cakes and candies and snacks that you can pick up to restore your health through out most of the stages. Generally all the looting you do pretty much pays out in cash for all the items you pick up along the way which you use to upgrade your health and items and such.
The combat is pretty visceral though and to that end its actually pretty enjoyable. Scoring a well placed block or a sneaking up on some unsuspecting doofus results in you watching your blade wedge deeply into their neck or spine. But if there is more than two or three people on, you might as well just chalk the fight up as a loss.
I found myself not even worrying about the stealth after a while because once you unlock the slow time ability, there really didnt seem to be a need to use anything else. I would get caught, let them chase me a second, slow time, then cut the lot of them to fucking ribbons before I broke a sweat. If you are going to try to make this a stealth game, then you really shouldnt give me abilities that render sneaking pointless.
Dishonored has been getting really solid reviews from all the major outlets, but it certainly isnt going to get one from me, I found this game to be really insubstantial. Maybe I am an overly rigid judge of games, or maybe I just cant be convinced that this boring style of western RPG that people seem to enjoy is actually fun. But I sat down with this game for a solid 8 or 10 hours, and much like other Bethesda games Ive played like Oblivion, Skyrim, or Fallout 3 I just found myself trudging along from mission to mission in a half lulled state of sleep. I was constantly getting distracted by Internet videos or instant messages or even just staring out my window and usually that is not a great sign of the game.
I think if this game had given me a 3rd person option much like Skyrim did I might have been a bit more favorable to it. Bethesda has shown me that they can do it and make it work, because it got me to play Skyrim to the storys end. But instead I got a slow paced parkour RPG with some decent combat mechanics but not engaging enough to keep going.
Dishonored shot itself in the foot with me because after Dead Island I dont trust game trailers that dont show me game footage and all the trailers I saw of this were all fully CG with no game footage. I was right to stick to this belief, because if they arent showing me game play footage then even the devs know their game is lacking. Had I seen actual gameplay prior to playing it, I wouldnt have wasted the 2 bucks to rent it. Im sure Dishonored will find its crowd, its reviews will see to that. But this game does nothing for me and I dont intend to pick it up again.
The combat is pretty visceral though and to that end its actually pretty enjoyable. Scoring a well placed block or a sneaking up on some unsuspecting doofus results in you watching your blade wedge deeply into their neck or spine. But if there is more than two or three people on, you might as well just chalk the fight up as a loss.
I found myself not even worrying about the stealth after a while because once you unlock the slow time ability, there really didnt seem to be a need to use anything else. I would get caught, let them chase me a second, slow time, then cut the lot of them to fucking ribbons before I broke a sweat. If you are going to try to make this a stealth game, then you really shouldnt give me abilities that render sneaking pointless.
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| Some of the quick kills are very satisfying to watch. |
I think if this game had given me a 3rd person option much like Skyrim did I might have been a bit more favorable to it. Bethesda has shown me that they can do it and make it work, because it got me to play Skyrim to the storys end. But instead I got a slow paced parkour RPG with some decent combat mechanics but not engaging enough to keep going.
Dishonored shot itself in the foot with me because after Dead Island I dont trust game trailers that dont show me game footage and all the trailers I saw of this were all fully CG with no game footage. I was right to stick to this belief, because if they arent showing me game play footage then even the devs know their game is lacking. Had I seen actual gameplay prior to playing it, I wouldnt have wasted the 2 bucks to rent it. Im sure Dishonored will find its crowd, its reviews will see to that. But this game does nothing for me and I dont intend to pick it up again.
Sunday, May 7, 2017
Display amount of free and used memory in the system In Ubuntu
Display amount of free and used memory in the system In Ubuntu
By using free you can display amount of free and used memory in the system.
Free displays the total amount of free and used physical and swap memory in the system, as well as the buffers used by the kernel. The shared memory
column should be ignored; it is obsolete.
Example:
free -m
Will display something like this:
total used free shared buffers cached
Mem: 244 240 3 0 15 82
-/+ buffers/cache: 143 101
Swap: 715 107 608
Usage:
free [-b | -k | -m | -g] [-o] [-s delay ] [-t] [-V]
Options:
The -b switch displays the amount of memory in bytes; the -k switch
(set by default)
displays it in kilobytes; the -m switch displays it in megabytes;
the -g switch displays it in gigabytes.
The -t switch displays a line containing the totals.
The -o switch disables the display of a "buffer adjusted" line. If the
-o option is not
specified, free subtracts buffer memory from the used memory and
adds it to the free memory reported.
The -s switch activates continuous polling delay seconds apart. You may
actually specify
any floating point number for delay, usleep(3) is used for
microsecond resolution delay times.
The -V displays version information.
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