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This change adds a new module to the scx_utils crate that provides a
log recorder for metrics-rs. The log recorder will log all metrics to
the console at a configurable interval in an easy to read format. Each
metric type will be displayed in a separate section. Indentation will
be used to show the hierarchy of the metrics. This results in a more
verbose output, but it is easier to read and understand.
scx_rusty was updated to use the log recorder and all explicit metric
logging was removed.
Counters will show the total count and the rate of change per second.
Counters with an additional label, like `type` in
`dispatched_tasks_total` in rusty, will show the count, rate, and
percentage of the total count.
Counters:
dispatched_tasks_total: 65559 [1344.8/s]
prev_idle: 44963 (68.6%) [966.5/s]
wsync_prev_idle: 15696 (23.9%) [317.3/s]
direct_dispatch: 2833 (4.3%) [35.3/s]
dsq: 1804 (2.8%) [21.3/s]
wsync: 262 (0.4%) [4.3/s]
direct_greedy: 1 (0.0%) [0.0/s]
pinned: 0 (0.0%) [0.0/s]
greedy_idle: 0 (0.0%) [0.0/s]
greedy_xnuma: 0 (0.0%) [0.0/s]
direct_greedy_far: 0 (0.0%) [0.0/s]
greedy_local: 0 (0.0%) [0.0/s]
dl_clamped_total: 1290 [20.3/s]
dl_preset_total: 514 [1.0/s]
kick_greedy_total: 6 [0.3/s]
lb_data_errors_total: 0 [0.0/s]
load_balance_total: 0 [0.0/s]
repatriate_total: 0 [0.0/s]
task_errors_total: 0 [0.0/s]
Gauges will show the last set value:
Gauges:
slice_length_us: 20000.00
Histograms will show the average, min, and max. The histogram will be
reset after each log interval to avoid memory leaks, since the data
structure that holds the samples is unbounded.
Histograms:
cpu_busy_pct: avg=1.66 min=1.16 max=2.16
load_avg node=0: avg=0.31 min=0.23 max=0.39
load_avg node=0 dom=0: avg=0.31 min=0.23 max=0.39
processing_duration_us: avg=297.50 min=296.00 max=299.00
Signed-off-by: Jose Fernandez <josef@netflix.com>
3 lines
18 B
Plaintext
3 lines
18 B
Plaintext
Cargo.lock
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