[PATCH v5 1/1] riscv: optimize ELF relocation function in riscv
patchwork-bot+linux-riscv at kernel.org
patchwork-bot+linux-riscv at kernel.org
Sat Jan 20 13:09:59 PST 2024
Hello:
This patch was applied to riscv/linux.git (fixes)
by Palmer Dabbelt <palmer at rivosinc.com>:
On Thu, 14 Dec 2023 09:39:06 +0300 you wrote:
> The patch can optimize the running times of insmod command by modify ELF
> relocation function.
> In the 5.10 and latest kernel, when install the riscv ELF drivers which
> contains multiple symbol table items to be relocated, kernel takes a lot
> of time to execute the relocation. For example, we install a 3+MB driver
> need 180+s.
> We focus on the riscv architecture handle R_RISCV_HI20 and R_RISCV_LO20
> type items relocation function in the arch\riscv\kernel\module.c and
> find that there are two-loops in the function. If we modify the begin
> number in the second for-loops iteration, we could save significant time
> for installation. We install the same 3+MB driver could just need 2s.
>
> [...]
Here is the summary with links:
- [v5,1/1] riscv: optimize ELF relocation function in riscv
https://git.kernel.org/riscv/c/080c4324fa5e
You are awesome, thank you!
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