Changeset a757ba1 for libcfa/src/concurrency/kernel

Timestamp:

Nov 10, 2022, 12:17:20 PM (22 months ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, ast-experimental, master

Children:

639e4fc

Parents:

6a4ef0c

Message:

Removed wait-with-io_uring feature which was slow, broken and ifdefed out.

Location:

libcfa/src/concurrency/kernel

Files:

• private.hfa (modified) (1 diff)
• startup.cfa (modified) (3 diffs)

libcfa/src/concurrency/kernel/private.hfa

@@ -41 +41 @@
 }
 
-// Defines whether or not we *want* to use io_uring_enter as the idle_sleep blocking call
-// #define CFA_WANT_IO_URING_IDLE
-
-// Defines whether or not we *can* use io_uring_enter as the idle_sleep blocking call
-#if defined(CFA_WANT_IO_URING_IDLE) && defined(CFA_HAVE_LINUX_IO_URING_H)
-        #if defined(CFA_HAVE_IORING_OP_READ) || (defined(CFA_HAVE_READV) && defined(CFA_HAVE_IORING_OP_READV))
-                #define CFA_WITH_IO_URING_IDLE
-        #endif
-#endif
 // #define READYQ_USE_LINEAR_AVG
 #define READYQ_USE_LOGDBL_AVG

libcfa/src/concurrency/kernel/startup.cfa

@@ -115 +115 @@
 KERNEL_STORAGE(thread$,              mainThread);
 KERNEL_STORAGE(__stack_t,            mainThreadCtx);
-// KERNEL_STORAGE(__scheduler_RWLock_t, __scheduler_lock);
-KERNEL_STORAGE(eventfd_t,            mainIdleEventFd);
-KERNEL_STORAGE(io_future_t,          mainIdleFuture);
 #if !defined(__CFA_NO_STATISTICS__)
 KERNEL_STORAGE(__stats_t, mainProcStats);
@@ -235 +232 @@
         (*mainProcessor){};
 
-        mainProcessor->idle_wctx.rdbuf = &storage_mainIdleEventFd;
-        mainProcessor->idle_wctx.ftr   = (io_future_t*)&storage_mainIdleFuture;
-        /* paranoid */ verify( sizeof(storage_mainIdleEventFd) == sizeof(eventfd_t) );
-
         __cfa_io_start( mainProcessor );
         register_tls( mainProcessor );
@@ -384 +377 @@
         register_tls( proc );
 
-        // used for idle sleep when io_uring is present
-        io_future_t future;
-        eventfd_t idle_buf;
-        proc->idle_wctx.ftr = &future;
-        proc->idle_wctx.rdbuf = &idle_buf;
+        // io_future_t future;
+        // eventfd_t idle_buf;
+        // proc->idle_wctx.ftr = &future;
+        // proc->idle_wctx.rdbuf = &idle_buf;