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Diffstat (limited to '')
| -rw-r--r-- | include/trace/events/iocost.h | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/include/trace/events/iocost.h b/include/trace/events/iocost.h new file mode 100644 index 000000000..6d1626e7a --- /dev/null +++ b/include/trace/events/iocost.h @@ -0,0 +1,225 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM iocost + +struct ioc; +struct ioc_now; +struct ioc_gq; + +#if !defined(_TRACE_BLK_IOCOST_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_BLK_IOCOST_H + +#include <linux/tracepoint.h> + +DECLARE_EVENT_CLASS(iocost_iocg_state, + + TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now, + u64 last_period, u64 cur_period, u64 vtime), + + TP_ARGS(iocg, path, now, last_period, cur_period, vtime), + + TP_STRUCT__entry ( + __string(devname, ioc_name(iocg->ioc)) + __string(cgroup, path) + __field(u64, now) + __field(u64, vnow) + __field(u64, vrate) + __field(u64, last_period) + __field(u64, cur_period) + __field(u64, vtime) + __field(u32, weight) + __field(u32, inuse) + __field(u64, hweight_active) + __field(u64, hweight_inuse) + ), + + TP_fast_assign( + __assign_str(devname, ioc_name(iocg->ioc)); + __assign_str(cgroup, path); + __entry->now = now->now; + __entry->vnow = now->vnow; + __entry->vrate = now->vrate; + __entry->last_period = last_period; + __entry->cur_period = cur_period; + __entry->vtime = vtime; + __entry->weight = iocg->weight; + __entry->inuse = iocg->inuse; + __entry->hweight_active = iocg->hweight_active; + __entry->hweight_inuse = iocg->hweight_inuse; + ), + + TP_printk("[%s:%s] now=%llu:%llu vrate=%llu " + "period=%llu->%llu vtime=%llu " + "weight=%u/%u hweight=%llu/%llu", + __get_str(devname), __get_str(cgroup), + __entry->now, __entry->vnow, __entry->vrate, + __entry->last_period, __entry->cur_period, + __entry->vtime, __entry->inuse, __entry->weight, + __entry->hweight_inuse, __entry->hweight_active + ) +); + +DEFINE_EVENT(iocost_iocg_state, iocost_iocg_activate, + TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now, + u64 last_period, u64 cur_period, u64 vtime), + + TP_ARGS(iocg, path, now, last_period, cur_period, vtime) +); + +DEFINE_EVENT(iocost_iocg_state, iocost_iocg_idle, + TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now, + u64 last_period, u64 cur_period, u64 vtime), + + TP_ARGS(iocg, path, now, last_period, cur_period, vtime) +); + +DECLARE_EVENT_CLASS(iocg_inuse_update, + + TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now, + u32 old_inuse, u32 new_inuse, + u64 old_hw_inuse, u64 new_hw_inuse), + + TP_ARGS(iocg, path, now, old_inuse, new_inuse, + old_hw_inuse, new_hw_inuse), + + TP_STRUCT__entry ( + __string(devname, ioc_name(iocg->ioc)) + __string(cgroup, path) + __field(u64, now) + __field(u32, old_inuse) + __field(u32, new_inuse) + __field(u64, old_hweight_inuse) + __field(u64, new_hweight_inuse) + ), + + TP_fast_assign( + __assign_str(devname, ioc_name(iocg->ioc)); + __assign_str(cgroup, path); + __entry->now = now->now; + __entry->old_inuse = old_inuse; + __entry->new_inuse = new_inuse; + __entry->old_hweight_inuse = old_hw_inuse; + __entry->new_hweight_inuse = new_hw_inuse; + ), + + TP_printk("[%s:%s] now=%llu inuse=%u->%u hw_inuse=%llu->%llu", + __get_str(devname), __get_str(cgroup), __entry->now, + __entry->old_inuse, __entry->new_inuse, + __entry->old_hweight_inuse, __entry->new_hweight_inuse + ) +); + +DEFINE_EVENT(iocg_inuse_update, iocost_inuse_shortage, + + TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now, + u32 old_inuse, u32 new_inuse, + u64 old_hw_inuse, u64 new_hw_inuse), + + TP_ARGS(iocg, path, now, old_inuse, new_inuse, + old_hw_inuse, new_hw_inuse) +); + +DEFINE_EVENT(iocg_inuse_update, iocost_inuse_transfer, + + TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now, + u32 old_inuse, u32 new_inuse, + u64 old_hw_inuse, u64 new_hw_inuse), + + TP_ARGS(iocg, path, now, old_inuse, new_inuse, + old_hw_inuse, new_hw_inuse) +); + +DEFINE_EVENT(iocg_inuse_update, iocost_inuse_adjust, + + TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now, + u32 old_inuse, u32 new_inuse, + u64 old_hw_inuse, u64 new_hw_inuse), + + TP_ARGS(iocg, path, now, old_inuse, new_inuse, + old_hw_inuse, new_hw_inuse) +); + +TRACE_EVENT(iocost_ioc_vrate_adj, + + TP_PROTO(struct ioc *ioc, u64 new_vrate, u32 *missed_ppm, + u32 rq_wait_pct, int nr_lagging, int nr_shortages), + + TP_ARGS(ioc, new_vrate, missed_ppm, rq_wait_pct, nr_lagging, nr_shortages), + + TP_STRUCT__entry ( + __string(devname, ioc_name(ioc)) + __field(u64, old_vrate) + __field(u64, new_vrate) + __field(int, busy_level) + __field(u32, read_missed_ppm) + __field(u32, write_missed_ppm) + __field(u32, rq_wait_pct) + __field(int, nr_lagging) + __field(int, nr_shortages) + ), + + TP_fast_assign( + __assign_str(devname, ioc_name(ioc)); + __entry->old_vrate = atomic64_read(&ioc->vtime_rate); + __entry->new_vrate = new_vrate; + __entry->busy_level = ioc->busy_level; + __entry->read_missed_ppm = missed_ppm[READ]; + __entry->write_missed_ppm = missed_ppm[WRITE]; + __entry->rq_wait_pct = rq_wait_pct; + __entry->nr_lagging = nr_lagging; + __entry->nr_shortages = nr_shortages; + ), + + TP_printk("[%s] vrate=%llu->%llu busy=%d missed_ppm=%u:%u rq_wait_pct=%u lagging=%d shortages=%d", + __get_str(devname), __entry->old_vrate, __entry->new_vrate, + __entry->busy_level, + __entry->read_missed_ppm, __entry->write_missed_ppm, + __entry->rq_wait_pct, __entry->nr_lagging, __entry->nr_shortages + ) +); + +TRACE_EVENT(iocost_iocg_forgive_debt, + + TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now, + u32 usage_pct, u64 old_debt, u64 new_debt, + u64 old_delay, u64 new_delay), + + TP_ARGS(iocg, path, now, usage_pct, + old_debt, new_debt, old_delay, new_delay), + + TP_STRUCT__entry ( + __string(devname, ioc_name(iocg->ioc)) + __string(cgroup, path) + __field(u64, now) + __field(u64, vnow) + __field(u32, usage_pct) + __field(u64, old_debt) + __field(u64, new_debt) + __field(u64, old_delay) + __field(u64, new_delay) + ), + + TP_fast_assign( + __assign_str(devname, ioc_name(iocg->ioc)); + __assign_str(cgroup, path); + __entry->now = now->now; + __entry->vnow = now->vnow; + __entry->usage_pct = usage_pct; + __entry->old_debt = old_debt; + __entry->new_debt = new_debt; + __entry->old_delay = old_delay; + __entry->new_delay = new_delay; + ), + + TP_printk("[%s:%s] now=%llu:%llu usage=%u debt=%llu->%llu delay=%llu->%llu", + __get_str(devname), __get_str(cgroup), + __entry->now, __entry->vnow, __entry->usage_pct, + __entry->old_debt, __entry->new_debt, + __entry->old_delay, __entry->new_delay + ) +); + +#endif /* _TRACE_BLK_IOCOST_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |