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Diffstat (limited to 'examples/performance-thread/common/lthread_timer.h')
| -rw-r--r-- | examples/performance-thread/common/lthread_timer.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/examples/performance-thread/common/lthread_timer.h b/examples/performance-thread/common/lthread_timer.h new file mode 100644 index 00000000..b5e6fb0e --- /dev/null +++ b/examples/performance-thread/common/lthread_timer.h @@ -0,0 +1,79 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2015 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +#ifndef LTHREAD_TIMER_H_ +#define LTHREAD_TIMER_H_ + +#include "lthread_int.h" +#include "lthread_sched.h" + + +static inline uint64_t +_ns_to_clks(uint64_t ns) +{ + unsigned __int128 clkns = rte_get_tsc_hz(); + + clkns *= ns; + clkns /= 1000000000; + return (uint64_t) clkns; +} + + +static inline void +_timer_start(struct lthread *lt, uint64_t clks) +{ + if (clks > 0) { + DIAG_EVENT(lt, LT_DIAG_LTHREAD_TMR_START, <->tim, clks); + rte_timer_init(<->tim); + rte_timer_reset(<->tim, + clks, + SINGLE, + rte_lcore_id(), + _sched_timer_cb, + (void *)lt); + } +} + + +static inline void +_timer_stop(struct lthread *lt) +{ + if (lt != NULL) { + DIAG_EVENT(lt, LT_DIAG_LTHREAD_TMR_DELETE, <->tim, 0); + rte_timer_stop(<->tim); + } +} + + +#endif /* LTHREAD_TIMER_H_ */ |