From: David Wang <00107082@163.com>
To: James.Bottomley@HansenPartnership.com, deller@gmx.de
Cc: linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
David Wang <00107082@163.com>
Subject: [PATCH 10/13] parisc/irq: use seq_put_decimal_ull_width() for decimal values
Date: Sat, 9 Nov 2024 00:22:01 +0800 [thread overview]
Message-ID: <20241108162201.9853-1-00107082@163.com> (raw)
Performance improvement for reading /proc/interrupts on arch parisc
Signed-off-by: David Wang <00107082@163.com>
---
arch/parisc/kernel/irq.c | 34 ++++++++++++++++++----------------
1 file changed, 18 insertions(+), 16 deletions(-)
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index dff66be65d29..b060d7e6da46 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -133,40 +133,42 @@ int arch_show_interrupts(struct seq_file *p, int prec)
int j;
#ifdef CONFIG_DEBUG_STACKOVERFLOW
- seq_printf(p, "%*s: ", prec, "STK");
+ seq_printf(p, "%*s:", prec, "STK");
for_each_online_cpu(j)
- seq_printf(p, "%10u ", irq_stats(j)->kernel_stack_usage);
+ seq_put_decimal_ull_width(p, " ", irq_stats(j)->kernel_stack_usage, 10);
seq_puts(p, " Kernel stack usage\n");
# ifdef CONFIG_IRQSTACKS
- seq_printf(p, "%*s: ", prec, "IST");
+ seq_printf(p, "%*s:", prec, "IST");
for_each_online_cpu(j)
- seq_printf(p, "%10u ", irq_stats(j)->irq_stack_usage);
+ seq_put_decimal_ull_width(p, " ", irq_stats(j)->irq_stack_usage, 10);
seq_puts(p, " Interrupt stack usage\n");
# endif
#endif
#ifdef CONFIG_SMP
if (num_online_cpus() > 1) {
- seq_printf(p, "%*s: ", prec, "RES");
+ seq_printf(p, "%*s:", prec, "RES");
for_each_online_cpu(j)
- seq_printf(p, "%10u ", irq_stats(j)->irq_resched_count);
+ seq_put_decimal_ull_width(p, " ",
+ irq_stats(j)->irq_resched_count, 10);
seq_puts(p, " Rescheduling interrupts\n");
- seq_printf(p, "%*s: ", prec, "CAL");
+ seq_printf(p, "%*s:", prec, "CAL");
for_each_online_cpu(j)
- seq_printf(p, "%10u ", irq_stats(j)->irq_call_count);
+ seq_put_decimal_ull_width(p, " ",
+ irq_stats(j)->irq_call_count, 10);
seq_puts(p, " Function call interrupts\n");
}
#endif
- seq_printf(p, "%*s: ", prec, "UAH");
+ seq_printf(p, "%*s:", prec, "UAH");
for_each_online_cpu(j)
- seq_printf(p, "%10u ", irq_stats(j)->irq_unaligned_count);
+ seq_put_decimal_ull_width(p, " ", irq_stats(j)->irq_unaligned_count, 10);
seq_puts(p, " Unaligned access handler traps\n");
- seq_printf(p, "%*s: ", prec, "FPA");
+ seq_printf(p, "%*s:", prec, "FPA");
for_each_online_cpu(j)
- seq_printf(p, "%10u ", irq_stats(j)->irq_fpassist_count);
+ seq_put_decimal_ull_width(p, " ", irq_stats(j)->irq_fpassist_count, 10);
seq_puts(p, " Floating point assist traps\n");
- seq_printf(p, "%*s: ", prec, "TLB");
+ seq_printf(p, "%*s:", prec, "TLB");
for_each_online_cpu(j)
- seq_printf(p, "%10u ", irq_stats(j)->irq_tlb_count);
+ seq_put_decimal_ull_width(p, " ", irq_stats(j)->irq_tlb_count, 10);
seq_puts(p, " TLB shootdowns\n");
return 0;
}
@@ -195,10 +197,10 @@ int show_interrupts(struct seq_file *p, void *v)
action = desc->action;
if (!action)
goto skip;
- seq_printf(p, "%3d: ", i);
+ seq_printf(p, "%3d:", i);
for_each_online_cpu(j)
- seq_printf(p, "%10u ", irq_desc_kstat_cpu(desc, j));
+ seq_put_decimal_ull_width(p, " ", irq_desc_kstat_cpu(desc, j), 10);
seq_printf(p, " %14s", irq_desc_get_chip(desc)->name);
#ifndef PARISC_IRQ_CR16_COUNTS
--
2.39.2
reply other threads:[~2024-11-08 16:22 UTC|newest]
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