Re: [PATCH] kernel/irq/proc: performance: replace seq_printf with seq_put_decimal_ull_width
| Newsgroups | gmane.linux.ports.ppc64.devel,gmane.linux.ports.riscv,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc |
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| Message-ID | <173395636600.1729195.17930169527159894833.git-patchwork-notify@kernel.org> |
Hello: This patch was applied to riscv/linux.git (fixes) by Michael Ellerman <[email protected]>: On Sun, 3 Nov 2024 16:05:52 +0800 you wrote: > seq_printf is costy, when stress reading /proc/interrupts, profiling indicates > seq_printf takes about ~47% of show_interrupts samples: > > show_interrupts(94.495% 5166019/5466991) > seq_printf(47.429% 2450210/5166019) > vsnprintf(89.232% 2186366/2450210) > format_decode(24.005% 524831/2186366) > number(19.488% 426084/2186366) > memcpy_orig(3.739% 81753/2186366) > ... > _raw_spin_unlock_irqrestore(26.643% 1376379/5166019) > mtree_load(8.059% 416304/5166019) > > [...] Here is the summary with links: - kernel/irq/proc: performance: replace seq_printf with seq_put_decimal_ull_width https://git.kernel.org/riscv/c/5b881c1f8379 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html