CONFIG_ARC_COMPACT_IRQ_LEVELS is not available for thedefaultarchitecture x86.
Result is shown for architecture arc

Setup Timer IRQ as high Priority

configname: CONFIG_ARC_COMPACT_IRQ_LEVELS

Linux Kernel Configuration
└─>ARC Architecture Configuration
└─>ARC CPU Configuration
└─>Setup Timer IRQ as high Priority
In linux kernel since version 3.1 (release Date: 2011-10-24)