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docs: make "runtime" a word only as a name for the package.
Computer people have an agglutinating streak that I like to resist. As a time of execution: run time. As an adjective: run-time. As a noun: run-time support/code/library. Signed, Mr. Pedant. R=golang-dev, rsc CC=golang-dev https://golang.org/cl/4252048
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@ -45,7 +45,7 @@ a <code>gcc-interface</code> subdirectory.
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</p>
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</p>
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<p>
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<p>
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The runtime library for <code>gccgo</code> is mostly the same as the
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The run-time library for <code>gccgo</code> is mostly the same as the
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library in <a href="http://code.google.com/p/go">the main Go
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library in <a href="http://code.google.com/p/go">the main Go
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repository</a>. The library code in the Go repository is periodically
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repository</a>. The library code in the Go repository is periodically
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copied into the <code>gofrontend</code> and the <code>gcc</code>
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copied into the <code>gofrontend</code> and the <code>gcc</code>
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@ -116,7 +116,7 @@ gccgo -o file file.o
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<p>
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<p>
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To run the resulting file, you will need to tell the program where to
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To run the resulting file, you will need to tell the program where to
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find the Go runtime library. This can be done either by setting
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find the compiled Go packages. This can be done either by setting
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<code>LD_LIBRARY_PATH</code> in your environment:
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<code>LD_LIBRARY_PATH</code> in your environment:
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<pre>
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<pre>
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@ -730,7 +730,7 @@ Why doesn't my multi-goroutine program use multiple CPUs?</h3>
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<p>
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<p>
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Under the gc compilers you must set <code>GOMAXPROCS</code> to allow the
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Under the gc compilers you must set <code>GOMAXPROCS</code> to allow the
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runtime to utilise more than one OS thread. Under <code>gccgo</code> an OS
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run-time support to utilise more than one OS thread. Under <code>gccgo</code> an OS
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thread will be created for each goroutine, and <code>GOMAXPROCS</code> is
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thread will be created for each goroutine, and <code>GOMAXPROCS</code> is
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effectively equal to the number of running goroutines.
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effectively equal to the number of running goroutines.
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</p>
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</p>
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@ -738,7 +738,7 @@ effectively equal to the number of running goroutines.
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<p>
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<p>
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Programs that perform concurrent computation should benefit from an increase in
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Programs that perform concurrent computation should benefit from an increase in
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<code>GOMAXPROCS</code>. (See the <a
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<code>GOMAXPROCS</code>. (See the <a
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href="http://golang.org/pkg/runtime/#GOMAXPROCS">runtime package
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href="http://golang.org/pkg/runtime/#GOMAXPROCS"><code>runtime</code> package's
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documentation</a>.)
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documentation</a>.)
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</p>
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</p>
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@ -759,8 +759,8 @@ penalty involved in sending data between threads.
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</p>
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</p>
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<p>
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<p>
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The Go runtime's scheduler is not as good as it needs to be. In future, it
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Go's goroutine scheduler is not as good as it needs to be. In future, it
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should recognise such cases and optimize its use of OS threads. For now,
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should recognize such cases and optimize its use of OS threads. For now,
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<code>GOMAXPROCS</code> should be set on a per-application basis.
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<code>GOMAXPROCS</code> should be set on a per-application basis.
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</p>
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</p>
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@ -942,13 +942,13 @@ parser are already available in <a href="/pkg/go/"><code>/pkg/go</code></a>.)
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We also considered using LLVM for <code>6g</code> but we felt it was too large and
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We also considered using LLVM for <code>6g</code> but we felt it was too large and
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slow to meet our performance goals.
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slow to meet our performance goals.
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<h3 id="How_is_the_runtime_implemented">
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<h3 id="How_is_the_run_time_support_implemented">
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How is the runtime implemented?</h3>
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How is the run-time support implemented?</h3>
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<p>
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<p>
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Again due to bootstrapping issues, the runtime is mostly in C (with a
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Again due to bootstrapping issues, the run-time code is mostly in C (with a
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tiny bit of assembler) although Go is capable of implementing most of
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tiny bit of assembler) although Go is capable of implementing most of
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it now. <code>Gccgo</code>'s runtime uses <code>glibc</code>.
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it now. <code>Gccgo</code>'s run-time support uses <code>glibc</code>.
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<code>Gc</code> uses a custom library, to keep the footprint under
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<code>Gc</code> uses a custom library, to keep the footprint under
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control; it is
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control; it is
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compiled with a version of the Plan 9 C compiler that supports
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compiled with a version of the Plan 9 C compiler that supports
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@ -968,7 +968,7 @@ type checks, reflection, and even panic-time stack traces.
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<p>
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<p>
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A trivial C "hello, world" program compiled and linked statically using gcc
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A trivial C "hello, world" program compiled and linked statically using gcc
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on Linux is around 750 kB. An equivalent Go program is around 1.8 MB, but
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on Linux is around 750 kB. An equivalent Go program is around 1.8 MB, but
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that includes a more powerful runtime. We believe that with some effort
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that includes more powerful run-time support. We believe that with some effort
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the size of Go binaries can be reduced.
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the size of Go binaries can be reduced.
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<h2 id="Performance">Performance</h2>
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<h2 id="Performance">Performance</h2>
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@ -555,7 +555,7 @@ When you want the equivalent of a virtual function, use an interface.
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A variable which has an interface type may be converted to have a
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A variable which has an interface type may be converted to have a
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different interface type using a special construct called a type assertion.
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different interface type using a special construct called a type assertion.
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This is implemented dynamically
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This is implemented dynamically
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at runtime, like C++ <code>dynamic_cast</code>. Unlike
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at run time, like C++ <code>dynamic_cast</code>. Unlike
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<code>dynamic_cast</code>, there does
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<code>dynamic_cast</code>, there does
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not need to be any declared relationship between the two interfaces.
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not need to be any declared relationship between the two interfaces.
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@ -589,7 +589,7 @@ must unbox using a type assertion to recover
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values of the contained type. As the typing is dynamic rather
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values of the contained type. As the typing is dynamic rather
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than static, there is no equivalent of the way that a C++ template may
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than static, there is no equivalent of the way that a C++ template may
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inline the relevant operations. The operations are fully type-checked
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inline the relevant operations. The operations are fully type-checked
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at runtime, but all operations will involve a function call.
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at run time, but all operations will involve a function call.
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<pre>
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<pre>
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type iterator interface {
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type iterator interface {
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@ -4698,7 +4698,7 @@ func protect(g func()) {
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defer func() {
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defer func() {
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log.Println("done") // Println executes normally even in there is a panic
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log.Println("done") // Println executes normally even in there is a panic
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if x := recover(); x != nil {
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if x := recover(); x != nil {
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log.Printf("runtime panic: %v", x)
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log.Printf("run time panic: %v", x)
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}
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}
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}
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}
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log.Println("start")
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log.Println("start")
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@ -54,7 +54,7 @@ architectures.
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</dl>
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</dl>
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<p>
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<p>
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Except for things like low-level operating system interface code, the runtime
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Except for things like low-level operating system interface code, the run-time
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support is the same in all ports and includes a mark-and-sweep garbage collector
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support is the same in all ports and includes a mark-and-sweep garbage collector
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(a fancier one is in the works), efficient array and string slicing,
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(a fancier one is in the works), efficient array and string slicing,
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support for segmented stacks, and a strong goroutine implementation.
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support for segmented stacks, and a strong goroutine implementation.
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@ -419,9 +419,9 @@ to override the defaults.
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<code>$GOARM</code> (arm, default=6)
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<code>$GOARM</code> (arm, default=6)
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</dt>
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</dt>
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<dd>
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<dd>
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The ARM architecture version the runtime libraries should target.
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The ARM architecture version the run-time libraries should target.
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ARMv6 cores have more efficient synchronization primitives. Setting
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ARMv6 cores have more efficient synchronization primitives. Setting
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<code>$GOARM</code> to 5 will compile the runtime libraries using
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<code>$GOARM</code> to 5 will compile the run-time libraries using
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just SWP instructions that work on older architectures as well.
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just SWP instructions that work on older architectures as well.
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Running v6 code on an older core will cause an illegal instruction trap.
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Running v6 code on an older core will cause an illegal instruction trap.
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</dd>
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</dd>
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