Changes in libcfa/src/concurrency/io/setup.cfa [7ce8873:2af1943]

File:

• libcfa/src/concurrency/io/setup.cfa (modified) (3 diffs)

libcfa/src/concurrency/io/setup.cfa

@@ -229 +229 @@
                 #if !defined(CFA_WITH_IO_URING_IDLE)
                         // Step 4 : eventfd
+                        // io_uring_register is so f*cking slow on some machine that it
+                        // will never succeed if preemption isn't hard blocked
                         __cfadbg_print_safe(io_core, "Kernel I/O : registering %d for completion with ring %d\n", procfd, fd);
 
@@ -238 +240 @@
                         __cfadbg_print_safe(io_core, "Kernel I/O : registered %d for completion with ring %d\n", procfd, fd);
                 #endif
-
-                // #if defined(CFA_HAVE_IORING_REGISTER_IOWQ_MAX_WORKERS)
-                //      // Step 5 : max worker count
-                //      __cfadbg_print_safe(io_core, "Kernel I/O : lmiting max workers for ring %d\n", fd);
-
-                //      unsigned int maxes[2];
-                //      maxes[0] = 64; // max number of bounded workers (Regular files / block)
-                //      maxes[1] = 64;  // max number of unbounded workers (IOSQE_ASYNC)
-                //      int ret = syscall( __NR_io_uring_register, fd, IORING_REGISTER_IOWQ_MAX_WORKERS, maxes, 2);
-                //      if (ret < 0) {
-                //              abort("KERNEL ERROR: IO_URING MAX WORKER REGISTER - %s\n", strerror(errno));
-                //      }
-
-                //      __cfadbg_print_safe(io_core, "Kernel I/O : lmited max workers for ring %d\n", fd);
-                // #endif
 
                 // some paranoid checks
@@ -359 +346 @@
         }
 
-        void ^?{}( $io_arbiter & this ) {}
+        void ^?{}( $io_arbiter & mutex this ) {}
 
         $io_arbiter * create(void) {