40 lines
840 B
Makefile
40 lines
840 B
Makefile
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catio: tmpfiles simple-cat.c
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@i=0; for n in 3145728 1048576 32768 16384 4096 1024 256 128 64 1; do \
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echo "BUFFSIZE = $$n"; \
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cc -Wall -DBUFFSIZE=$$n simple-cat.c; \
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i=$$(( $$i + 1 )); \
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for j in $$(jot 5); do \
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time ./a.out <tmp/file$$i >tmp/out; \
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done; \
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echo; \
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echo; \
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done;
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clean:
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rm -fr tmp
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tmpfiles: tmp/file9
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tmp/file9:
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@mkdir -p tmp
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@for n in $$(jot 10); do \
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echo "Creating file number $$n..."; \
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dd if=/dev/urandom of=tmp/file$$n bs=$$(( 1024 * 1024 )) count=100 2>/dev/null;\
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done;
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sync: tmpfiles scat
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time ./scat <tmp/file9 >out
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scat: sync-cat.c
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cc -Wall sync-cat.c -o scat
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async: tmpfiles ascat
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time ./ascat <tmp/file9 >out
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ascat: async-cat.c
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cc -Wall $? -o $@
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async-cat.c: sync-cat.c
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sed -e 's|\(.*O_SYNC.*\)|//\1|' sync-cat.c > async-cat.c
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