Re: Valgrind runs way slower on faster PC

On 2/10/25 12:44 AM, Lev Yudalevich wrote:
> My first PC has i7-6700K @ 4.00GHz x 8 CPU, 32GiB RAM
> My second PC has i7-10700 @ 2.90GHz x 16 CPU, 64GiB RAM
> Both machines have identical OS installation (Ubuntu 22.04.5 LTS) rest 
> of the software (toolchains etc).
> However, running Valgrind (version 3.25.0.GIT) with the same test 
> program on a second (presumably more powerful) machine is more than 
> twice slower than running the same on the first machine.

Run "sudo dmidecode >dmidecode.out" and compare the cache sizes and
associativity.  Run "grep cache /proc/cpuinfo".  Also run "lscpu".
What is the TLB size?  Boot the standalone memtest86+ and check
the measured speed of caches and RAM.