On 12/3/21 10:17, Tao Zhou wrote:
> On Mon, Nov 29, 2021 at 12:07:45PM +0100,
> Daniel Bristot de Oliveira wrote:
>
>> +static void timerlat_hist_usage(char *usage)
>> +{
>> + int i;
>> +
>> + char *msg[] = {
>> + "",
>> + " usage: [rtla] timerlat hist [-h] [-q] [-p us] [-i us] [-t us] [-s us] [-T[=file]] \\",
>> + " [-c cpu-list] [-P priority] [--no-irq] [--no-thread] [--no-header] [--no-summary] \\",
>> + " [--no-index] [--with-zeros]",
>> + "",
>> + " -h/--help: print this menu",
>> + " -p/--period us: timerlat period in us",
>> + " -i/--irq us: stop trace if the irq latency is higher than the argument in us",
>> + " -T/--thread us: stop trace if the thread latency is higher than the argument in us",
>> + " -s/--stack us: save the stack trace at the IRQ if a thread latency is higher than the argument in us",
>> + " -c/--cpus cpus: run the tracer only on the given cpus",
>> + " -d/--duration time[m|h|d]: duration of the session in seconds",
>> + " -T/--trace[=file]: save the stopped trace to [file|timerlat_trace.txt]",
>> + " -n/--nano: display data in nanoseconds",
>> + " -b/--bucket-size N: set the histogram bucket size (default 1)",
>> + " -e/--entries N: set the number of entries of the histogram (default 256)",
>> + " --no-irq: ignore IRQ latencies",
>> + " --no-thread: ignore thread latencies",
>> + " --no-header: do not print header",
>> + " --no-summary: do not print summary",
>> + " --no-index: do not print index",
>> + " --with-zeros: print zero only entries",
>> + " -P/--priority o:prio|r:prio|f:prio|d:runtime:period : set scheduling parameters",
>> + " o:prio - use SCHED_OTHER with prio",
>> + " r:prio - use SCHED_RR with prio",
>> + " f:prio - use SCHED_FIFO with prio",
>> + " d:runtime[us|ms|s]:period[us|ms|s] - use SCHED_DEADLINE with runtime and period",
>> + " in nanoseconds",
>> + NULL,
>> + };
>
> [-t us] --> [-T us]
> [-T[=file]] --> [-t[=file]]
> [-d] [-b] [-e] [-n] lack in usage info. this is not important tho.
>
Fixed in V9
-- Daniel
