make the whole project more python idiomatic

* rename src directory to allocbench
* make global variable names UPPERCASE
* format a lot of code using yapf
* use lowercase ld_preload and ld_library_path as Allocator members
* name expected Errors 'err' and don't raise a new Exception
* disable some pylint messages

2 files changed, 0 insertions, 130 deletions

diff --git a/src/benchmarks/rdtsc/Makefile b/src/benchmarks/rdtsc/Makefile
deleted file mode 100644
index f81a84b..0000000
--- a/src/benchmarks/rdtsc/Makefile
+++ /dev/null
@@ -1,25 +0,0 @@
-OBJDIR ?= obj
-
-CC ?= gcc
-
-WARNFLAGS ?= -Wall -Wextra
-COMMONFLAGS ?= -fno-builtin -pthread
-OPTFLAGS ?= -O0 -g
-
-CFLAGS ?= $(OPTFLAGS) $(WARNFLAGS) $(COMMONFLAGS)
-
-LDFLAGS ?= -pthread -static-libgcc
-
-.PHONY = all clean
-
-all: $(OBJDIR)/rdtsc
-
-$(OBJDIR)/rdtsc: rdtsc.c Makefile | $(OBJDIR)
-	@echo compiling $@...
-	$(CC) $(LDFLAGS) $(CFLAGS) -o $@ $<
-
-$(OBJDIR):
-	mkdir -p $@
-
-clean:
-	rm -rf $(OBJDIR)
diff --git a/src/benchmarks/rdtsc/rdtsc.c b/src/benchmarks/rdtsc/rdtsc.c
deleted file mode 100644
index fec84d6..0000000
--- a/src/benchmarks/rdtsc/rdtsc.c
+++ /dev/null
@@ -1,105 +0,0 @@
-#define _GNU_SOURCE             /* See feature_test_macros(7) */
-#include <pthread.h>
-#include <sched.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/sysinfo.h>
-
-int mode = 0;
-int size = 64;
-int iterations = 100000;
-int num_cpus;
-
-static __inline__ int64_t rdtsc_s(void)
-{
-	unsigned a, d;
-	asm volatile("cpuid" ::: "%rax", "%rbx", "%rcx", "%rdx");
-	asm volatile("rdtsc" : "=a" (a), "=d" (d));
-	return ((unsigned long)a) | (((unsigned long)d) << 32);
-}
-
-static __inline__ int64_t rdtsc_e(void)
-{
-	unsigned a, d;
-	asm volatile("rdtscp" : "=a" (a), "=d" (d));
-	asm volatile("cpuid" ::: "%rax", "%rbx", "%rcx", "%rdx");
-	return ((unsigned long)a) | (((unsigned long)d) << 32);
-}
-
-static void* test_thread_func(void* arg) {
-	int64_t clock_before, clock_after;
-	void* p;
-
-	int64_t* clocks = malloc(iterations * sizeof(int64_t));
-	if (!clocks)
-		abort();
-
-	// set cpu affinity to prevent cpu switching
-	int64_t tid = (int64_t) arg;
-	cpu_set_t my_cpu;
-	/* Skip CPU0 - let the OS run on that one */
-	int my_cpu_num = (tid % (num_cpus-1))+1;
-
-	CPU_ZERO (&my_cpu);
-	CPU_SET (my_cpu_num, &my_cpu);
-	if (sched_setaffinity (0, sizeof(my_cpu), &my_cpu) == -1)
-	  perror ("setaffinity failed");
-
-	for(int i = 0; i < iterations; i++) {
-		clock_before = rdtsc_s();
-		p = malloc(size);
-		clock_after = rdtsc_e();
-
-		// measure potentially cached allocations
-		if (mode)
-			free(p);
-
-		clocks[i] = clock_after - clock_before;
-	}
-
-	for(int i = 0; i < iterations; i++) {
-		printf("malloc(%d): %d cycles\n", size, clocks[i]);
-	}
-
-	return NULL;
-}
-
-int main(int argc, char* argv[]) {
-	pthread_t* threads;
-	int num_threads = 1;
-
-	num_cpus = get_nprocs();
-
-	if (argc > 5) {
-		fprintf(stderr, "Usage: %s <iterations> <size> <num threads>\n", argv[0]);
-		return 1;
-	}
-
-	if (argc > 1) {
-		if (strncmp(argv[1], "cached", strlen("cached")) == 0) mode = 1;
-	}
-	if (argc > 2) iterations = atoi(argv[2]);
-	if (argc > 3) size = atoi(argv[3]);
-	if (argc > 4) num_threads = atoi(argv[4]);
-
-	fprintf(stderr, "iterations = %d; size = %d; threads = %d\n", iterations, size, num_threads);
-
-	threads = (pthread_t*) malloc(num_threads * sizeof(pthread_t));
-
-	for (int i = 0; i < num_threads; i++) {
-		if (0 != pthread_create(&threads[i], NULL, test_thread_func, NULL)) {
-			perror("pthread_create");
-			return 1;
-		}
-	}
-
-	for(int i = 0; i < num_threads; i++) {
-		if (0 != pthread_join(threads[i], NULL)) {
-			perror("pthread_join");
-			return 1;
-		}
-	}
-
-	return 0;
-}