System-Research

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Research

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Research about system party which will turn own articles or sections-

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Speed-Tests

Raw filesystem speed tests for some models:

7530 7.29 - 30 Euro USB3 SSD - ext4 - 205MB/s read, 82MB/s write

root@fritz1:/var/media/ftp/FRITZ1# time dd if=test.bin of=/dev/null bs=1M count=1024
real	0m 4.99s
user	0m 0.00s
sys	0m 3.63s
=> 1024MB/4.99s = 205MB/s read speed

root@fritz1:/var/media/ftp/FRITZ1# time dd if=/dev/zero of=test.bin bs=1M count=1024
real	0m 12.48s
user	0m 0.00s
sys	0m 10.69s
=> 1024MB/12.48s = 82MB/s write speed

6490 7.29 - Internal-Storage - ext4 - 28MB/s read, 5.4MB/s write

root@fritz2:/var/media/ftp# time dd if=test.bin of=/dev/null bs=1M count=1024
real	0m 36.44s
user	0m 0.00s
sys	0m 3.90s
=> 1024MB/36.44s = 28.1MB/s read speed

root@fritz2:/var/media/ftp# time dd if=/dev/zero of=test.bin bs=1M count=1024
real	3m 10.34s
user	0m 0.02s
sys	0m 9.74s
=> 1024MB/190.34s = 5.38MB/s write speed

7490 7.29 - Internal-Storage - yaffs2 - 5.7MB/s read, 3.25MB/s write

root@fritz3:/var/media/ftp $ time dd if=test.bin of=/dev/null bs=1M count=350
real	1m 1.52s
user	0m 0.02s
sys	0m 14.76s
=> 350MB/61.52s = 5.7MB/s read speed

root@fritz3:/var/media/ftp $ time dd if=/dev/zero of=test.bin bs=1M count=350
real	1m 47.61s
user	0m 0.00s
sys	1m 7.90s
=> 350MB/107.61s = 3.25MB/s write speed

7520-Bootloader

• 0x0000 - 10kB - Mainly empty (0xFF) with some pointers/vectors
• 0x2800 - 1014kB - ELF executable - secure bootloader
• 0x100000 - 768kB - ELF executable - ARM trustzone #1
• 0x1C0000 - 512kB - ELF executable - ARM trustzone #2
• 0x240000 - 256kB - ELF executable - EVA bootloader #1
• 0x280000 - 256kB - ELF executable - EVA bootloader #2
• 0x2C0000 - end - 2816kB = 2.75MB

$ binwalk urlader.bin 

DECIMAL       HEXADECIMAL     DESCRIPTION
--------------------------------------------------------------------------------
10240         0x2800          ELF, 32-bit LSB executable, ARM, version 1 (SYSV)
206223        0x3258F         Unix path: /core/boot/secboot3/hw/ipq40xx/sbl1/sbl1_config.c
207475        0x32A73         Unix path: /core/boot/secboot3/hw/ipq40xx/sbl1/sbl1_sahara.c
208175        0x32D2F         Unix path: /core/boot/secboot3/src/boot_config_data.c
208579        0x32EC3         Unix path: /core/boot/secboot3/src/boot_dload_debug.c
211628        0x33AAC         Unix path: /core/buses/uart_40x8/1
212964        0x33FE4         Unix path: /core/buses/uart/1
219371        0x358EB         Unix path: /core/services/utils/src/crc.c
1048576       0x100000        ELF, 32-bit LSB executable, ARM, version 1 (SYSV)
1287884       0x13A6CC        XML document, version: "1.0"
1835008       0x1C0000        ELF, 32-bit LSB executable, ARM, version 1 (SYSV)
2074316       0x1FA6CC        XML document, version: "1.0"
2359296       0x240000        ELF, 32-bit LSB executable, ARM, version 1 (SYSV)
2464544       0x259B20        CRC32 polynomial table, little endian
2469906       0x25B012        PARity archive data - file number 25938
2476857       0x25CB39        Copyright string: "Copyright 2018 AVM Date: %s Time: %s "
2486036       0x25EF14        JFFS2 filesystem, little endian
2605060       0x27C004        Zlib compressed data, default compression
2607108       0x27C804        Zlib compressed data, default compression
2611204       0x27D804        gzip compressed data, maximum compression, has original file name: "cert.tar", from FAT filesystem (MS-DOS, OS/2, NT), last modified: 2019-07-24 22:21:03
2621440       0x280000        ELF, 32-bit LSB executable, ARM, version 1 (SYSV)
2726688       0x299B20        CRC32 polynomial table, little endian
2732050       0x29B012        PARity archive data - file number 25938
2739001       0x29CB39        Copyright string: "Copyright 2018 AVM Date: %s Time: %s "
2748180       0x29EF14        JFFS2 filesystem, little endian
2867204       0x2BC004        Zlib compressed data, default compression
2869252       0x2BC804        Zlib compressed data, default compression
2873348       0x2BD804        gzip compressed data, maximum compression, has original file name: "cert.tar", from FAT filesystem (MS-DOS, OS/2, NT), last modified: 2019-07-24 22:21:03

References

Fact-Box