From: Thomas Gleixner <tglx@linutronix.de>
To: Sasha Levin <sashal@kernel.org>,
linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: David Wang <00107082@163.com>,
Huacai Chen <chenhuacai@loongson.cn>,
Sasha Levin <sashal@kernel.org>,
chenhuacai@kernel.org, maobibo@loongson.cn,
wangliupu@loongson.cn, lvjianmin@loongson.cn,
zhangtianyang@loongson.cn, loongarch@lists.linux.dev
Subject: Re: [PATCH AUTOSEL 6.12 18/36] LoongArch/irq: Use seq_put_decimal_ull_width() for decimal values
Date: Wed, 11 Dec 2024 20:14:18 +0100 [thread overview]
Message-ID: <87zfl29gmt.ffs@tglx> (raw)
In-Reply-To: <20241211185028.3841047-18-sashal@kernel.org>
On Wed, Dec 11 2024 at 13:49, Sasha Levin wrote:
> From: David Wang <00107082@163.com>
>
> [ Upstream commit ad2a05a6d287aef7e069c06e329f1355756415c2 ]
>
> Performance improvement for reading /proc/interrupts on LoongArch.
>
> On a system with n CPUs and m interrupts, there will be n*m decimal
> values yielded via seq_printf(.."%10u "..) which is less efficient than
> seq_put_decimal_ull_width(), stress reading /proc/interrupts indicates
> ~30% performance improvement with this patch (and its friends).
Why is this stable material?
Thanks,
tglx
next prev parent reply other threads:[~2024-12-11 19:14 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-11 18:49 [PATCH AUTOSEL 6.12 01/36] watchdog: it87_wdt: add PWRGD enable quirk for Qotom QCML04 Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 02/36] watchdog: rzg2l_wdt: Power on the watchdog domain in the restart handler Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 03/36] Revert "watchdog: s3c2410_wdt: use exynos_get_pmu_regmap_by_phandle() for PMU regs" Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 04/36] watchdog: mediatek: Add support for MT6735 TOPRGU/WDT Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 05/36] watchdog: s3c2410_wdt: add support for exynosautov920 SoC Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 06/36] scsi: qla1280: Fix hw revision numbering for ISP1020/1040 Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 07/36] scsi: megaraid_sas: Fix for a potential deadlock Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 08/36] udf: Skip parent dir link count update if corrupted Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 09/36] udf: Verify inode link counts before performing rename Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 10/36] ALSA: ump: Don't open legacy substream for an inactive group Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 11/36] ALSA: ump: Indicate the inactive group in legacy substream names Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 12/36] ALSA: ump: Update legacy substream names upon FB info update Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 13/36] ALSA: hda/conexant: fix Z60MR100 startup pop issue Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 14/36] ALSA: sh: Use standard helper for buffer accesses Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 15/36] smb: server: Fix building with GCC 15 Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 16/36] regmap: Use correct format specifier for logging range errors Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 17/36] LoongArch: Fix reserving screen info memory for above-4G firmware Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 18/36] LoongArch/irq: Use seq_put_decimal_ull_width() for decimal values Sasha Levin
2024-12-11 19:14 ` Thomas Gleixner [this message]
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 19/36] LoongArch: BPF: Adjust the parameter of emit_jirl() Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 20/36] platform/x86: asus-nb-wmi: Ignore unknown event 0xCF Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 21/36] bpf: Zero index arg error string for dynptr and iter Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 22/36] net: sched: fix ordering of qlen adjustment Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 23/36] spi: intel: Add Panther Lake SPI controller support Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 24/36] scsi: mpt3sas: Diag-Reset when Doorbell-In-Use bit is set during driver load time Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 25/36] scsi: mpi3mr: Synchronize access to ioctl data buffer Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 26/36] scsi: mpi3mr: Fix corrupt config pages PHY state is switched in sysfs Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 27/36] scsi: mpi3mr: Start controller indexing from 0 Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 28/36] scsi: mpi3mr: Handling of fault code for insufficient power Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 29/36] scsi: storvsc: Do not flag MAINTENANCE_IN return of SRB_STATUS_DATA_OVERRUN as an error Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 30/36] ACPI/IORT: Add PMCG platform information for HiSilicon HIP09A Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 31/36] spi: omap2-mcspi: Fix the IS_ERR() bug for devm_clk_get_optional_enabled() Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 32/36] drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req() Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 33/36] drm/dp_mst: Reset message rx state after OOM " Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 34/36] virtio-blk: don't keep queue frozen during system suspend Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 35/36] blk-mq: register cpuhp callback after hctx is added to xarray table Sasha Levin
2024-12-11 18:49 ` [PATCH AUTOSEL 6.12 36/36] blk-mq: move cpuhp callback registering out of q->sysfs_lock Sasha Levin
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