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> There is some loss of memory before MemTotal, both from the BIOS > (SMM, Frame Buffer for integrated graphics etc.) and from the kernel > (mem_map which costs a few percent and some other data structures > which are allocated early) > > I covered this in detail in http://halobates.de/memorywaste.pdf > I read your paper, which is very helpful for us to understand the memory usage in Linux kernel. And I have a question about output of slabtop: Active / Total Objects (% used) : 730986 / 750823 (97.4%) Active / Total Slabs (% used) : 46124 / 46125 (100.0%) Active / Total Caches (% used) : 99 / 149 (66.4%) Active / Total Size (% used) : 169383.63K / 172467.11K (98.2%) Could you please elaborate on Active / Total Caches? The meaning of other lines are obvious to me. Thanks, Forrest | ||||||||||||
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