Roadie Hero Mac OS
Ninjam is an open-source software that allows musicians to jam together via the internet. It provides a virtual console where each musician can adjust their mix to according to their preferences. Additionally, it is compatible with Mac OS X, Linus, and Windows. Soundjack is another great resource to use during these social distancing. If you have any questions about the code in these tutorials or about Mac OS in general, leave a comment below. All of the code used in this article can be found on the public Mac OS platform layer Github repository. Be sure to subscribe to my YouTube channel and preorder your copy of Handmade Hero. Your support makes this possible. UGREEN Ethernet Adapter USB 2.0 to 10 100 Network RJ45 LAN Wired Adapter Compatible for Nintendo Switch Wii Wii U MacBook Chromebook Windows Mac OS Surface Linux ASIX AX88772 Chipset Black 4.6 out of 5 stars 17,793. A Mac OS X, Linux and Windows version of the game was released on Steam on February 26, 2013.
I can get it to run using:
Roadie Hero Mac Os X
http://xyproblem.info/
http://www.catb.org/~esr/faqs/smart-questions.html
I switched my Mac platform layer over to mmap. I'm still cleaning up some code from the past few days so it's not in github yet, but here's an excerpt:
Scribbling all over memory
I timed the attached test program of that bug report on my 10.10 system (the report was filed against OS X 10.7) and the gap between vm and mmap calls is now much smaller.
And more importantly, the way they're using the allocations, at least in the test program, is per 256KB block, and the test measures 51200 allocations and deallocations, which take a grand total of ~50ms all together.
In the case of HandmadeHero, the app makes about 3 calls to reserve memory from the OS and all at app startup time, so the sub-microsecond time difference between these two calls is irrelevant.
As for vm_allocate, I tried the following little test program
And that works fine.
Jeff, you posted as I was writing this up, are there other reasons to use mmap over vm_allocate?
--
Update: when you start reading/writing to the memory allocated by vm_allocate, the pages are zero filled, which is a requirement for the HH app.
Btw, I just got state replay to work. (Currently the code is filled with litter and stray code but pushed to repo anyway. I used vm_alloc with random addr above 5 GB (why?)
I have a 15' retina MacBook Pro with crazy fast pci flash but the writes (using fwrite) takes way too long. I'm thinking of saving the replay state to memory and then writing to disk with a separate command.
As far as picking the requested address, I'm not sure there is any magic value, it's just that when you are asking for a large contiguous block, you need to find a big empty space in virtual memory, and lots of stuff ends up living in the 0-4GB range. If you run the vmmap command line utility on your running application (get the pid from top, ps, or Activity Monitor), you can get an idea of your application's memory layout:
Here's a little excerpt of my HandMadeHero app's vmmap output. You can see my requested large mmap'd memory starting at the 8GB address that I highlighted in red:
MALLOC_LARGE (freed) 000000010ed00000-000000010eeaf000 [ 1724K] rw-/rwx SM=ZER
MALLOC_SMALL (freed) 000000010f000000-000000010f800000 [ 8192K] rw-/rwx SM=PRV ...cHelperZone_0x100082000
MALLOC_SMALL 000000010f800000-0000000110000000 [ 8192K] rw-/rwx SM=PRV ...cHelperZone_0x100082000
[color=#ff0000]VM_ALLOCATE 0000000200000000-0000000208000000 [128.0M] rw-/rwx SM=PRV
VM_ALLOCATE (reserved) 0000000208000000-0000000304000000 [ 3.9G] rw-/rwx SM=NUL ...ess space (unallocated)[/color]
__DATA 000012348029b000-00001234802f3000 [ 352K] rw-/rwx SM=COW .../AMDRadeonX3000GLDriver
__DATA 00001234802f3000-00001234802f4000 [ 4K] rw-/rwx SM=PRV .../AMDRadeonX3000GLDriver
I do like this:
1. For GameMemoryBlock I use mmap for anon alloc like Jeff does above
2. For the ReplayBuffers I use mmap like:
3. When I start recording, I ftruncate the filedescriptor to 'TotalSize'
This leads to:
A. slight delay when the files are truncated the first time (then instantaneous)
B. delay when quitting (writing?)
I would like to:
I) circumvent the delay for A (like some kind of nonblocking truncate)
II) circumvent the delay for B
Do anyone of you have any idea?
1. Condition B is fixed
2. Delay for A is more or less the same, maybe worse
Is there some secret sauce to add?
On OSX fallocate doesn't exist, but you can use fcntl with F_PREALLOCATE. See how to use it in this function from Firefox source: https://hg.mozilla.org/mozilla-ce...a907/xpcom/glue/FileUtils.cpp#l59
http://xyproblem.info/
http://www.catb.org/~esr/faqs/smart-questions.html
For now,on a practical level, it works 'good enough'. It's easy and fast to tweak and test after the first initial write.
But as long as your code is correct, there is nothing wrong asking for fixed address with mmap. They probably wrote that document very long time ago and did not bother updating it. Here's how Linux removed 'discouraged' from mmap documentation: https://lore.kernel.org/patchwork/patch/857794/
http://xyproblem.info/
http://www.catb.org/~esr/faqs/smart-questions.html
Operating System
The Mac operating system — earlier called OS X and now renamed macOS — has traditionally been viewed as more stable than Windows. The main reason for this was that Apple produces both the hardware (Mac computer) and the software (Mac operating system); so they have better control over the integration of the entire system. Apple is also known to use only the best parts for its computers.[1]
Since the Windows operating system can run on hundreds of different types of computers, variations in hardware configurations within those computers can cause stability problems. There are dozens, if not hundreds, of PC manufacturers and so there is a wide variety in hardware quality of PCs.
Another reason for Macs being traditionally more stable is that since PCs are the more popular choice in the desktop market, most hackers and computer virus makers target PCs. As the popularity for Mac computers increase, it can be expected that the incidence of hacker and virus attacks will increase.
It should be noted that you can run Windows on a Mac but cannot run macOS on a PC. Apple has also released a software kit called Bootcamp for running Windows on the Mac. Other software virtualization applications used to run Windows on Macs include Virtualbox and Parallels.
Another factor contributing to a better user experience on the Mac is that there is no software cruft i.e., there are no third-party applications that are pre-installed on your Mac. PCs usually come with several 3rd-party apps pre-installed. For example, antivirus software from McAfee or Symantec, or DVD reading/writing software. Some of this software can be downright dangerous for the security and privacy of the user; case in point: Lenovo's Superfish scandal. Interestingly, this feature of Apple devices also applies to the iOS vs Android debate; Android devices ship with 'crapware' (3rd party applications that many people don't ever use) while iPhones and iPads ship only with Apple software.
User Interface
The most noticeable difference between Macs and PCs is in the user interfaces. While many computer users will proclaim one or the other “superior” or “best,” this is ultimately a matter of personal preference. Highlights of the UI in Mac OS X include Launchpad (a screen full of app icons for easily launching your favorite apps), hot corners that can be customized for various types of views, a 'dock' that has icons for your favorite apps, full screen mode for apps, and 'spaces' that create as many desktops as you like so you can minimize clutter. With Windows 8 UI highlights include a touch-friendly 'metro' interface that contains 'live tiles', rectangular boxes of varying sizes on the screen that represent an app and get refreshed with the latest content from the app. Several apps utilizing the 'metro' interface are full screen apps like in tablet computers.
Security
Macs have a reputation of being more secure than Windows PCs. In the 90s and early to mid-2000s, Windows was plagued with adware, malware and viruses that were mostly a result of users downloading compromised software, opening malicious email attachments or other malicious files downloaded from the Internet. Macs had a lower market share so malware-makers and distributors focused on the Windows platform.
Today the situation is not so lopsided. Windows security and Microsoft's Defender anti-virus program have made great strides and made Windows a safe platform. Macs have had security problems of their own, like the admin login vulnerability discovered in November 2017. And because of the growing popularity of the Mac platform — especially among high-value targets like computer programmers — malware-makers are increasingly homing in on Macs as targets.
Irrespective of whether you're on a Mac or PC, it is not advisable to open files from unknown sources or any files downloaded via email or on the Internet that seem suspicious. If you're on Windows, it is further recommended to not use anti-virus programs other than Microsoft's Defender because they introduce security vulnerabilities of their own.[2]
Uses
Mac computers are most widely used in the creative professional market, including in journalism and desktop publishing, video editing and audio editing, but have also made inroads into the educative and scientific research sectors. Macs are also popular with computer programmers — a majority of web and app developers tend to use Macs.
PCs are also used with some of the video and audio editing and research purposes but are found largely as the Home or Office Computer. PCs are also widely used in gaming due to a wider variety of games available for the Windows platform.
Market share
Apple's share of the U.S. personal-computer market nearly tripled from 2004 to 2008 but hasn't gone up significantly since then, and stands at around 8.5 percent in August 2009, according to IDC. (Source: Associated Press)
In Q1 2008, worldwide PC shipments were around 70 million (up from 61 million in Q1 2007) whereas worldwide Mac shipments were around 2.3 million (up from 1.5 million in Q1 2007). Historical charts for PC vs. Mac shipments are available at http://blog.seattlepi.nwsource.com/microsoft/archives/137350.asp
The market share of Mac for the July-Sept 2007 quarter was estimated at 3.2% for worldwide sales. While of PCs ( including major companies like HP, Dell, Lenovo, Acer and Toshiba) was a total of around 56%.(Refer: http://www.systemshootouts.org/mac_sales.html)
Interoperability
PCs and Macs can usually share peripherals if they connect via USB, FireWire, or Bluetooth, three industry standards available on every Mac. Most popular applications for Mac and PC use the same file formats, making it simple to exchange documents with friends and coworkers or move existing files from a PC to a Mac.
Applications
Macs major applications include Ilife and Time Machine while the PCs most widely used application includes MS Office. Some popular games provided on a Mac are Mac Crack Attack, 3D Klondike while on PC are Solitaire and Virtual Pool.
There is a variety of software available for PCs, which are better than a Mac machine for use as gaming machines since most high-end games are created for the general PC. PCs and Macs can usually share peripherals if they connect via USB, FireWire, or Bluetooth, three industry standards available on every Mac. Most popular applications for Mac and PC use the same file formats, making it simple to exchange documents with friends and coworkers or move existing files from a PC to a Mac.
Gaming
Roadie Hero Mac Os Update
Traditionally PCs have had the upper hand when it comes to gaming because more publishers developed games for the PC platform. Dollar for dollar, PCs have also provided more powerful processors and speed is an important criterion when it comes to gaming. Some popular games that are available only on PCs are Age of Empires III and Crysis. Games that have both Mac and PC versions include Call of Duty 4: Modern warfare, Guitar Hero III: Legends of Rock, LegoStar Wars II, Starcraft and World of Warcraft.
Productivity Software
Microsoft Office, Adobe Creative Suite & Cloud are available for both Windows and Mac platforms. Other productivity software like OpenOffice and StarOffice is also available for all platforms. Apple's iWork office suite, which includes Pages (word processor), Numbers (spreadsheets) and Keynote (presentation maker) are only available on the Mac and iOS platforms.
Mac vs. PC War
Macs were hugely popular when the Macintosh was introduced in the mid-80s. They pioneered the GUI and the mouse. With Windows 3.1 and the wildly popular Windows 95, Microsoft gained a large market share. In the 1990s, Windows grew by leaps and bounds and Apple went downhill. After Steve Jobs was brought back to Apple, he introduced the iMac and revived Mac sales. Microsoft bought a 5% stake in Apple with a $150mn investment in non-voting shares in 1997.
Apple's Macs have always had a small but passionate fan base. In 2007, Apple released Mac vs PC ads showcasing the “cool” factor of Macs. These have been parodied online, often with a 3rd character (a woman) for Linux.
The Mac vs. PC ads
In September 2008, Microsoft responded to the Apple campaign with a campaign of their own to break the PC stereotype.
A MAC into a PC (and vice versa)
Roadie Hero Mac Os Catalina
By installing software like Boot Camp, or a virtualization solution, such as Parallels Desktop, a Mac can function like a PC machine. In other words, a MAC can run Windows on it.
Apple does not allow the use of its operating system on non-Apple hardware. So a Windows PC cannot run Mac OS X. However, the Hackintosh project allows users to run Mac OS on any supported Intel-based PC.
Price
The MacBook Air starts at $999, whereas the MacBook Pro costs $1,199 and up, depending on the model. See MacBook Air vs MacBook Pro and MacBook vs MacBook Pro.
Current prices of various models and accessories are available on Apple.com and on Amazon.com.
PCs usually cost significantly less than Macs with comparable hardware. This is mostly because PCs are manufactured by a large number of hardware manufacturers, resulting in increased competition and lower prices. A wide selection of PCs with varying costs is available on Amazon.com.