Go to main content

Oracle® Solaris 11.4 DTrace (Dynamic Tracing) Guide

Exit Print View

Updated: September 2020
 
 

Aggregation APIs

void dtrace_aggregate_clear(dtrace_hdl_t *dtp)

Clears the aggregation data being stored in user space in the consumer. See dtrace_aggregate_clear(3DTRACE).

int dtrace_aggregate_snap(dtrace_hdl_t *dtp)

Transfers data in the (in-kernel) aggregation buffers to user space. The data is not processed at this point, it is stored in the consumer. See dtrace_aggregate_snap(3DTRACE).

int dtrace_aggregate_print(dtrace_hdl_t *dtp, FILE *fp, dtrace_aggregate_walk_f *func)

Prints DTrace aggregate data. See dtrace_aggregate_print(3DTRACE).

int dtrace_aggregate_walk(dtrace_hdl_t *dtp, dtrace_aggregate_f *func, void *arg)

Processes the aggregate data with no sorting. See dtrace_aggregate_walk(3DTRACE).

int dtrace_aggregate_walk_joined(dtrace_hdl_t *dtp, dtrace_aggvarid_t *aggvars, int naggvars, dtrace_aggregate_walk_joined_f *func, void *arg)

Processes multiple aggregations at the same time, similar to a database join operation. See dtrace_aggregate_walk_joined(3DTRACE).

int dtrace_aggregate_walk_sorted(dtrace_hdl_t *dtp, dtrace_aggregate_f *func, void *arg)

Processes the aggregate data as described in dtrace_aggregate_walk()) sorted first by variable name (if there are multiple aggregations) and within each aggregation by value. See dtrace_aggregate_walk_sorted(3DTRACE).

int dtrace_aggregate_walk_keysorted(dtrace_hdl_t *dtp, dtrace_aggregate_f *func, void *arg)

Processes the aggregate data (as described in dtrace_aggregate_walk()) sorted first by variable name (if there are multiple aggregations) and within each aggregation by key. See dtrace_aggregate_walk_keysorted(3DTRACE).

int dtrace_aggregate_walk_valsorted(dtrace_hdl_t *dtp, dtrace_aggregate_f *func, void *arg)

Processes the aggregate data (as described in dtrace_aggregate_walk()) sorted first by variable name (if there are multiple aggregations) and within each aggregation by value. See dtrace_aggregate_walk_valsorted(3DTRACE).

int dtrace_aggregate_walk_keyvarsorted(dtrace_hdl_t *dtp, dtrace_aggregate_f *func, void *arg)

Processes the aggregate data (as described in dtrace_aggregate_walk()) sorted first by key. When the same key occurs in two different aggregations, it sorts by aggregation ID. See dtrace_aggregate_walk_keyvarsorted(3DTRACE).

int dtrace_aggregate_walk_valvarsorted(dtrace_hdl_t *dtp, dtrace_aggregate_f *func, void *arg)

Processes the aggregate data as described in dtrace_aggregate_walk() sorted first by value and then by variable or aggregation ID. See dtrace_aggregate_walk_valvarsorted(3DTRACE).

int dtrace_aggregate_walk_keyrevsorted(dtrace_hdl_t *dtp, dtrace_aggregate_f *func, void *arg)

Processes the aggregate data (as described in dtrace_aggregate_walk()) in the reverse order as the dtrace_aggregate_walk_keysorted() function. Specifically, it will sort in reverse order by variable or aggregation ID and then in reverse order by key. See dtrace_aggregate_walk_keyrevsorted(3DTRACE).

int dtrace_aggregate_walk_valrevsorted(dtrace_hdl_t *dtp, dtrace_aggregate_f *func, void *arg)

Processes the aggregate data (as described in dtrace_aggregate_walk()) in the reverse order as the dtrace_aggregate_walk_valsorted() function. Specifically, it will sort in reverse order by variable or aggregation ID and then in reverse order by value. See dtrace_aggregate_walk_valrevsorted(3DTRACE).

int dtrace_aggregate_walk_keyvarrevsorted(dtrace_hdl_t *dtp, dtrace_aggregate_f *func, void *arg)

Process the aggregate data (as described in dtrace_aggregate_walk()) in the reverse order as the dtrace_aggregate_walk_keyvarsorted() function. Specifically, it will sort in reverse order by key. and then, in the case of collisions, in reverse order by variable or aggregation ID See dtrace_aggregate_walk_keyvarrevsorted(3DTRACE).

int dtrace_aggregate_walk_valvarrevsorted(dtrace_hdl_t *dtp, dtrace_aggregate_f *func, void *arg)

Process the aggregate data (as described under dtrace_aggregate_walk()) in the reverse order as the dtrace_aggregate_walk_valvarsorted() function. Specifically, it will sort in reverse order by value and then in reverse order by variable or aggregation ID. See dtrace_aggregate_walk_valrevsorted(3DTRACE).