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Date: Wed, 10 Apr 2019 15:44:49 -0700 Message-Id: <20190410224449.10877-4-atish.patra@wdc.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190410224449.10877-1-atish.patra@wdc.com> References: <20190410224449.10877-1-atish.patra@wdc.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190410_154515_279774_2621CECA X-CRM114-Status: UNSURE ( 8.88 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Albert Ou , Anup Patel , Palmer Dabbelt , "maintainer:X86 ARCHITECTURE 32-BIT AND 64-BIT" , Atish Patra , Ingo Molnar , Borislav Petkov , Gary Guo , "H. Peter Anvin" , linux-riscv@lists.infradead.org, Thomas Gleixner , Luc Van Oostenryck Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org The TLB flush counters under vmstat seems to be very helpful while debugging TLB flush performance in RISC-V. Add the Kconfig option only for debug kernels. Signed-off-by: Atish Patra --- arch/riscv/Kconfig.debug | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/riscv/Kconfig.debug b/arch/riscv/Kconfig.debug index e69de29bb2d1..6a2d3762aeda 100644 --- a/arch/riscv/Kconfig.debug +++ b/arch/riscv/Kconfig.debug @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: GPL-2.0 + +config DEBUG_TLBFLUSH + bool "Save tlb flush statstics to vmstat" + depends on DEBUG_KERNEL + help + + Add TLB flush statstics to vmstat. It is really helpful understand tlbflush + performance and behavior. It should be enabled only for debugging purpose. + + If in doubt, say "N". + -- 2.21.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv