On Fri, 13 Jun 2025, Nathan Bossart wrote:
On Fri, Jun 13, 2025 at 01:00:26AM +0200, Dimitrios Apostolou wrote:
By the way, I might have set the threshold to 1MB in my program, but
lowering it won't show a difference in my test case, since the lseek()s I
was noticing before the patch were mostly 8-16KB forward. Not sure what is
the defining factor for that. Maybe the compression algorithm, or how wide
the table is?
I may have missed it, but could you share what the strace looks like with
the patch applied?
read(4, "..."..., 8192) = 8192
read(4, "..."..., 4096) = 4096
read(4, "..."..., 12288) = 12288
read(4, "..."..., 4096) = 4096
read(4, "..."..., 8192) = 8192
read(4, "..."..., 4096) = 4096
read(4, "..."..., 8192) = 8192
read(4, "..."..., 4096) = 4096
read(4, "..."..., 8192) = 8192
read(4, "..."..., 4096) = 4096
read(4, "..."..., 8192) = 8192
read(4, "..."..., 4096) = 4096
read(4, "..."..., 8192) = 8192
read(4, "..."..., 4096) = 4096
read(4, "..."..., 8192) = 8192
read(4, "..."..., 4096) = 4096
read(4, "..."..., 12288) = 12288
read(4, "..."..., 4096) = 4096
read(4, "..."..., 8192) = 8192
read(4, "..."..., 4096) = 4096
read(4, "..."..., 12288) = 12288
read(4, "..."..., 4096) = 4096
read(4, "..."..., 8192) = 8192
read(4, "..."..., 4096) = 4096
read(4, "..."..., 8192) = 8192
read(4, "..."..., 4096) = 4096
read(4, "..."..., 12288) = 12288
read(4, "..."..., 4096) = 4096
read(4, "..."..., 8192) = 8192
read(4, "..."..., 4096) = 4096
