dump.c dumpdata:
        for (count = limit; !limit || count; count--) {
                struct timeval t;
                gettimeofday(&t, NULL);

+                char prefix[256] = {0};
+                strcpy(prefix, ctime(&t.tv_sec));
+                char *p = strrchr(prefix, '\n');
+                if (p) {
+                        *p = 0;
+                }
+                fprintf(f, "<%s> %llu.%llu: ", prefix, (unsigned long long) t.tv_sec,
                                (unsigned long long) t.tv_usec);

                fprintf(f, "bus %02x, ", bus);
				
ͷļ<time.h>
		

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<Tue Mar 15 11:17:45 2022> 1647343065.399060: bus 01, gpu 0.00%, ee 0.00%, vgt 0.00%, ta 0.00%, sx 0.00%, sh 0.00%, spi 0.00%, sc 0.00%, pa 0.00%, db 0.00%, cb 0.00%, vram 1.38% 112.81mb, gtt 0.99% 80.96mb, mclk 24.00% 0.300ghz, sclk 31.45% 0.342ghz
<Tue Mar 15 11:17:47 2022> 1647343067.399212: bus 01, gpu 0.00%, ee 0.00%, vgt 0.00%, ta 0.00%, sx 0.00%, sh 0.00%, spi 0.00%, sc 0.00%, pa 0.00%, db 0.00%, cb 0.00%, vram 1.38% 112.81mb, gtt 0.99% 80.96mb, mclk 24.00% 0.300ghz, sclk 31.45% 0.342ghz
<Tue Mar 15 11:17:49 2022> 1647343069.399306: bus 01, gpu 0.00%, ee 0.00%, vgt 0.00%, ta 0.00%, sx 0.00%, sh 0.00%, spi 0.00%, sc 0.00%, pa 0.00%, db 0.00%, cb 0.00%, vram 1.38% 112.81mb, gtt 0.99% 80.96mb, mclk 24.00% 0.300ghz, sclk 27.62% 0.300ghz
<Tue Mar 15 11:17:51 2022> 1647343071.399395: bus 01, gpu 0.00%, ee 0.00%, vgt 0.00%, ta 0.00%, sx 0.00%, sh 0.00%, spi 0.00%, sc 0.00%, pa 0.00%, db 0.00%, cb 0.00%, vram 1.38% 112.81mb, gtt 0.99% 80.96mb, mclk 24.00% 0.300ghz, sclk 27.62% 0.300ghz
<Tue Mar 15 11:17:53 2022> 1647343073.399478: bus 01, gpu 0.00%, ee 0.00%, vgt 0.00%, ta 0.00%, sx 0.00%, sh 0.00%, spi 0.00%, sc 0.00%, pa 0.00%, db 0.00%, cb 0.00%, vram 1.38% 112.81mb, gtt 0.99% 80.96mb, mclk 24.00% 0.300ghz, sclk 27.62% 0.300ghz
