Messages in this thread | | | Date | Tue, 28 Mar 2023 10:52:08 -0700 | From | Luis Chamberlain <> | Subject | Re: [RFC PATCH 1/5] mm: intorduce __GFP_UNMAPPED and unmapped_alloc() |
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On Tue, Mar 28, 2023 at 06:37:13PM +0100, Matthew Wilcox wrote: > On Tue, Mar 28, 2023 at 10:18:50AM -0700, Luis Chamberlain wrote: > > differences with eBPF programs is that modules *can* be rather large > > in size. What is the average size of modules? Well let's take a look: > > > > mcgrof@bigtwin /mirror/code/mcgrof/linux-next (git::master)$ find ./ > > -name \*.ko| wc -l > > 9173 > > ummm ... wc -c, surely?
That's the number of allmodconfig modules found.
mcgrof@fulton ~/linux (git::sysctl-next)$ find ./ -name \*.ko| head -2 ./arch/x86/crypto/twofish-x86_64.ko ./arch/x86/crypto/serpent-avx2.ko mcgrof@fulton ~/linux (git::sysctl-next)$ find ./ -name \*.ko| head -2 | wc -l 2 mcgrof@fulton ~/linux (git::sysctl-next)$ find ./ -name \*.ko| head -2 | wc -c 70
wc -c would give a lot more. wc -l gives me the module count.
> > mcgrof@bigtwin /mirror/code/mcgrof/linux-next (git::master)$ find ./ > > -name \*.ko| xargs stat -c "%s - %n" | sort -n -k 1 -r | tail > > -$((9173-5)) | awk 'BEGIN {sum=0} {sum+=$1} END {print sum/NR/1024}' > > 160.54 > > ... which invalidates all of these.
Not sure ? But regardless the *.text* lookup is what we care for though which was later.
Luis
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