Upload vs Download Speed What s The Difference

pcbinary June 27, 2021 0 Comments



What Is Internet Speed?


Photo by iNueng on iStockphotoFirst of all, let’s define ‘internet speed.’ Usually, when you apply foran internet connection, your internet service provider (ISP) shows you a rangeof numbers that serve as your internet speed. It could be 5 Mbps, 10 Mbps, 15Mbps, and the list goes on. However, these numbers have nothing to do with howmuch your internet works. In fact, the internet is not like a car where youcan measure how fast it goes per mile an hour.The internet speed is rather the allocated bandwidth you applied for. When wesay bandwidth, it is the amount of data sent to you by your ISP and it istypically measured in seconds. For instance, 10mbps means you are receiving 10megabytes per second.

Upload vs Download Speed: What’s The Difference?


We bet you’re surprised to know that your internet speed is different when itcomes to downloading and uploading documents. Generally, download speed is thetime taken as your internet connection pulls data from the server to you. Itis usually measured in kbps (kilobytes per second), or Mbps (megabytes persecond). Typically you’ll only use these download speeds on the internet whenyou’re browsing the web, watching videos, listening to music, and more.On the other hand, upload speed is the amount of time your internet connectiontransfers data to the server. Its measurement is the same as the downloadspeed. However, you’ll only utilize upload speed when you’re sending emails,uploading media or playing online games.In most cases, the download speed tends to be faster and higher than theupload speed mainly because people use more data from other servers than viceversa. In big companies, however, their upload speeds are typically higherthan any home connections.

What Is A Good Upload And Download Speed?


Photo by OstapenkoOlena on iStockphotoAccording to the Federal Communications Commission (FCC), good internet speedshould be at or above 25Mbps. The download speed should be at or above 25 Mbpswhile the upload speed should not be less than 3 Mbps. In this range, you canengage in common online activities such as uploading videos, downloadingmusic, web browsing, HD streaming, and online gaming.Internet speed surpassing the baseline of 25 Mbps is considered to have‘fast internet.’ While those that are below the recommended margin may ormay not be slow for your web activities. However, they are certainly too slowfor broadband internet (international internet speed).In order to help you gauge better, a 100 Mbps and higher is considered to havehigh-speed internet. This is usually installed in large companies and firms.

How Can I Measure My Internet Speed?


©Photo by Ookla SpeedtestWhether if you are annoyed by the slow download speed or just beinguncomfortable to have the constant buffering when streaming a video, a commonquestion being asked is “How fast is my internet?” In order to solve yourmystery, here is some simple solution to help you check out our internet speedeffectively. Besides, you can also determine how much bandwidth you arereceiving through the bandwidth speed test.A common practice is by using an online speed test. Here are somerecommendations:In order to have an accurate result, we recommend you take the speed testusing a wired connection. This way, you will truly measure your internetconnection since it is directly connected with the source. If you’reexperiencing inaccurate results as compared to what your internet providerpromised, it could be because of the WiFi speed test.In many cases, Wi-Fi usually fluctuates and may give you inaccurate speedresults based on your distance from the modem. However, if the results are notoptimal even you tested it with a wired connection, you should do an internethealth check with your provider. Otherwise, you can also opt for a Wifibooster for a better and stable internet connection.

What Is A Good Internet Speed For Gaming?


We all know how frustrating it is when our game lags in the midst of an epicsession. The fps (frames per second) start to drop, and sometimes, the gametotally freezes. However, you can prevent this by making sure you have a goodand stable internet speed before gaming.The suggested speed to game online is around 4-8 Mbps. However, if you wish tohave a smoother gaming experience, 10-25 Mbps is the best bet. But oops! Itdoesn’t stop there. You also need to acquaint yourself with the followingterms as they play a crucial role in your gaming experience: Ping and Latency.Ping is the reaction time of your connection. It measures how fast you receivea response after sending a request. When gaming, a fast ping means yourconnection is responsive. Thus, allowing you to have seamless gamingexperience. (Yes, without the lags!) Ping is usually measured in milliseconds(ms).Latency, on the other hand, is the delay of the connection. So if your ping ishigh, that means you have a high internet latency.The aforementioned internet speed test sites also show the rate of your pingtest.

What Is A Good Download Speed For Streaming?


Photo by Tero Vesalainen on iStockphotoAre you the one who love streaming movies during your free time? If yes,you’re are not alone. In fact, the majority of people use the internet formovie streaming. However, your internet speed can affect the quality of themovie. Ultimately, deciding if you’re going to have a good or bad moviestreaming experience.If you wish to watch a movie in standard definition, you should have at least3 Mbps download speed. As for HD streaming, make sure you have at least 5 Mbpsdownload internet speed. Going all the way up to 4K streaming, it requires aminimum of 25 Mbps or higher. Of course, if you’re streaming with severaldevices at the same time, you’ll need a quicker internet speed.Here’s the breakdown to help you roughly estimate what kind of internetpackages you should commit into: 1. Netflix says you’ll need 5 Mbps to stream HD content and 25 Mbps for 4K Ultra HD content. 2. In order to stream gameplay such as Twitch, you’ll want a minimum of 3 Mbps to 4 Mbps for 720p at 30 frames per second. As for 1080p at 60 fps, you’ll need at least 4.5 to 6 Mbps.

Bandwidth Requirements


The amount of bandwidth required to surf the web seamlessly depends on thetask the user wishes to undertake.For instance, an instant messaging conversation may use 1,000 bits, or onekilobit, per second in bandwidth. A voice-over conversation, in whichsomeone’s voice transmits through computer connections, meanwhile, typicallyuses 56 kilobits per second (Kbps).Moving further up the scale, standard-definition video takes one Mbps, whileHDX video quality, one of the highest standards on video-sharing services,takes more than seven Mbps for downloading.

History of Bandwidth


Since 1994, the Internet has transformed from a niche technology, servingmainly to interconnect laboratories engaged in government research, to a keypart of everyday life. In 1995, 0.77% of the world’s population reportedly hadaccess to the Internet. Fast-forward to 2019, and over half of the globe wasconnected.People now depend on the Internet to communicate, purchase goods, earn anincome, gain access to information, and entertain themselves. Over the years,the technology has become more content-heavy, sophisticated, and populated,meaning the amount of bandwidth required to use it effectively has increasedsubstantially.

Basic 3DXPoint Performance


The most critical difference between 3DXPoint and DRAM is that 3DXPoint haslonger latency and lower bandwidth. Load and store performance is alsoasymmetric.

Bandwidth


Our measurements show that 3DXPoint bandwidth is lower than DRAM bandwidth,especially for stores. The figure below plots sequential access bandwidth tosix 3DXPoint DIMMs for between 1 and 23 threads and compares its bandwidth tosix DRAM DIMMs. For reads (at left), bandwidth peaks at 39.4 GB/s. For writes(at right), it takes just four threads to reach saturation at 13.9 GB/s.Random access performance is interesting as well. This figure plots bandwidthfor random accesses of different sizes to a single DIMM issued by one thread.The left edge of the graph corresponds to small (64 B) random updates, whilethe right edge measure accesses large enough (128 kB) to be effectivelysequential.Performance for read and write rises quickly until access size reaches 256 Band slowly climbs to a peak of 1.5 GB/s for stores and 2.8 GB/s for loads. 256B is 3DXPoint’s internal block size. It represents the smallest efficientaccess granularity for 3DXPoint. Loads and stores that are smaller than thisgranularity waste bandwidth as they have the same latency as a 256 B access.Stores that are smaller also result in write amplification since 3DXPointwrites at least 256 B for every update, incurring wear and consuming energy.

3DXPoint as Persistent Storage


3DXPoint will profoundly affect the performance of storage systems. Using3DXPoint DIMMs as storage media disables the DRAM cache and exposes the3DXPoint as a persistent memory block device in Linux. Several persistent-memory file systems are available to run on such a device: Ext4 and XFS werebuilt for disks but have direct access (or “DAX”) modes, while others (e.g.,NOVA) are purpose-built for persistent memory.The graph below summarizes performance for several file systems performingrandom reads and random writes with between one and sixteen threads. It alsocompares performance to a SATA SSDs (“Ext4-SATA”) and Optane-based SSDs(“Ext4-Optane”) that exposes 3DXPoint as a block device via the PCIe bus. Thedata show that 3DXPoint improves basic storage performance over both of thosestorage devices by a wide margin.

3DXPoint as Persistent Memory


3DXPoint’s most intriguing application is as a byte-addressable persistentmemory that user space applications map into their address space (with themmap() system call) and then access directly with loads and stores. Using3DXPoint in this way is more complex than accessing through a conventionalfile-based interface because the application has to ensure crash consistencyrather than relying on the file system. However, the potential performancegains are much larger.Our final figure, illustrates the benefits of aggressively exploiting 3DXPointfor application-level performance on RocksDB, Redis, MySQL, SQLite, and LMDB.MySQL is running TPC-C; the others are running workloads that insert key-valuepairs.The impact at the application level varies widely, but the data show theimpact of more aggressively integrating 3DXPoint into the storage system.Replacing flash memory with 3DXPoint in the SSD (and moving to the PCIe bus)gives a significant boost, but for most applications deeper integration withhardware (i.e., putting the 3DXPoint on a DIMM rather than an SSD) andsoftware (i.e., using an PMEM-optimized file system — “NOVA” — or rewritingthe application to use memory-mapped persistent data structures — “Mapped3DXPoint”) yields the highest performance.The figure also shows the benefits of building native, memory-mapped,persistent data structures for Redis and RocksDB. The impact varies widely:performance for RocksDB increases by 3.5×, while Redis 3.2 gains just 20%.Understanding the root cause of the difference in performance and how toachieve RocksDB-like results will be fertile ground for developers andresearchers.

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