* Pavel Machek <pavel@xxxxxx> [180625 09:52]: > Hi! > > > > > V4.18 is slower than it should be. > > > > > > > > user@devuan:~$ time cat /dev/urandom | head -c 10000000 | bzip2 -9 - > > > > | wc -c > > > > 10044291 > > > > 52.73user 2.40system 61.53 (1m1.534s) elapsed 89.60%CPU > > > > user@devuan:~$ uname -a > > > > Linux devuan 4.18.0-rc1-87964-gfa19934-dirty #743 SMP Sun Jun 17 > > > > 19:26:37 CEST 2018 armv7l GNU/Linux > > > > > > > > That bzip should take 12 seconds, not minute. > > > > > > > > Any ideas? Do you see it, too? > > > > > > I've noticed firefox is super slow.. Git bisect time? > > > > Hmm not happening for me at least on duovero and droid4, > > I'm getting about 20s for v4.17 and v4.18-rc1. > > Something weird is going on here. My notes say it should be 12 > seconds. > > It is indeed 20 seconds for v4.17, but it is 12 seconds in v4.14. > > v4.14 is: > # CONFIG_CPU_FREQ is not set > CONFIG_CPU_IDLE=y > # CONFIG_CPU_IDLE_GOV_LADDER is not set > CONFIG_CPU_IDLE_GOV_MENU=y > # CONFIG_ARM_CPUIDLE is not set > > In v4.18, I have: > > CONFIG_CPU_FREQ=y > CONFIG_CPU_FREQ_GOV_ATTR_SET=y > CONFIG_CPU_FREQ_GOV_COMMON=y > CONFIG_CPU_FREQ_STAT=y > CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y > > CONFIG_CPU_IDLE=y > CONFIG_CPU_IDLE_GOV_MENU=y > CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED=y I gave it a quick try here with v4.14 and it was 21 seconds on 4430 duovero. But this was with omap2plus_defconfig. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
