* Evolution of Linux kernel sizes
@ 2013-11-27 9:35 Geert Uytterhoeven
2013-11-27 9:38 ` Geert Uytterhoeven
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Geert Uytterhoeven @ 2013-11-27 9:35 UTC (permalink / raw)
To: Linux/m68k, Linux Embedded; +Cc: linux-kernel@vger.kernel.org
Preface:
The results below are for m68k.
Why would you care about m68k? You don't, but that doesn't
mean the results are not applicable to other architectures and
platforms where RAM is a precious resource.
Below are the static kernel sizes (as reported by "size") for m68k
multi-platform kernels (m68k/multi_defconfig), for kernel versions
2.6.28 to 3.12:
text data bss dec hex filename
3420940 204772 163888 3789600 39d320 vmlinux-v2.6.28
3464548 219592 164972 3849112 3abb98 vmlinux-v2.6.29
3388760 207964 156588 3753312 394560 vmlinux-v2.6.30
3453128 210649 157580 3821357 3a4f2d vmlinux-v2.6.31
3477222 212032 158156 3847410 3ab4f2 vmlinux-v2.6.32
3513197 210032 154880 3878109 3b2cdd vmlinux-v2.6.33
3530751 211200 154032 3895983 3b72af vmlinux-v2.6.34
3583761 211404 154448 3949613 3c442d vmlinux-v2.6.35
3570768 179888 153344 3904000 3b9200 vmlinux-v2.6.36
3568083 182516 149992 3900591 3b84af vmlinux-v2.6.37
3609796 182736 149228 3941760 3c2580 vmlinux-v2.6.38
3621429 180576 145056 3947061 3c3a35 vmlinux-v2.6.39
3756437 181424 140184 4078045 3e39dd vmlinux-v3.0
3778616 203272 135564 4117452 3ed3cc vmlinux-v3.1
3550337 182512 183004 3915853 3bc04d vmlinux-v3.2
3579169 183044 182360 3944573 3c307d vmlinux-v3.3
3520525 210752 176384 3907661 3ba04d vmlinux-v3.4
3543961 211604 181788 3937353 3c1449 vmlinux-v3.5
3567386 209328 181888 3958602 3c674a vmlinux-v3.6
3623569 210344 181572 4015485 3d457d vmlinux-v3.7
3981063 216584 184284 4381931 42dceb vmlinux-v3.8
3999784 220336 183356 4403476 433114 vmlinux-v3.9
4040393 217440 188108 4445941 43d6f5 vmlinux-v3.10
4076456 222544 190632 4489632 4481a0 vmlinux-v3.11
4010686 220476 190220 4421382 437706 vmlinux-v3.12
It's not a perfect list, as config files evolve over time, but there's
clearly a trend of increasing kernel sizes, ca. 25 KiB/version.
One issue we're facing is that currently the early kernel startup
code on m68k does not support kernel images larger than 4 MiB.
However, I'm not inclined to fix that, as it removes all incentive
to keep kernel sizes small ;-)
The current distro solution is to make as many drivers as possible
modular, and use an initrd. But this adds complexity, and not
everyone wants to use an initrd.
Then you start wondering: What options can I disable? What does
disabling an option gain?
So I wrote a script to automate this process, starting from the current
.config:
https://github.com/geertu/linux-scripts/blob/master/linux-analyze-marginal-sizes
>From the accompanying README:
Starting from the current .config file, find out how much space is saved
in the kernel image by individually disabling each of the currently
enabled config options. Module support and all modules are disabled first.
You can pass make options to specify e.g. the target architecture and
cross compiler.
Caveats:
* This is only about static kernel size, not about dynamic memory
consumption.
* You cannot just add up the numbers, as some config options depend on
other config options.
* It's highly recommended to use ccache or distcc.
Example: Display the top 10 options to decrease kernel image size:
linux-analyze-marginal-sizes CROSS_COMPILE=m68k-linux-gnu- \
ARCH=m68k -j 4 | tee log
grep -w saves log | sort -nr --key=4 | head -10
For v3.13-rc1, the top 10 is:
Disabling CONFIG_NET saves 1038404 bytes
Disabling CONFIG_INET saves 572034 bytes
Disabling CONFIG_EXT4_FS saves 328370 bytes
Disabling CONFIG_NFS_FS saves 258728 bytes
Disabling CONFIG_NETWORK_FILESYSTEMS saves 258728 bytes
Disabling CONFIG_SCSI saves 241850 bytes
Disabling CONFIG_FB saves 207496 bytes
Disabling CONFIG_AMIGA saves 160700 bytes
Disabling CONFIG_MAC saves 151134 bytes
Disabling CONFIG_ATARI saves 138392 bytes
I hope you find this useful!
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Evolution of Linux kernel sizes
2013-11-27 9:35 Evolution of Linux kernel sizes Geert Uytterhoeven
@ 2013-11-27 9:38 ` Geert Uytterhoeven
2013-11-27 9:59 ` Richard Cochran
2013-11-27 15:17 ` Wolfgang Denk
2 siblings, 0 replies; 4+ messages in thread
From: Geert Uytterhoeven @ 2013-11-27 9:38 UTC (permalink / raw)
To: Linux/m68k
[Keeping only linux-m68k for discussions about m68k/multi_defconfig]
On Wed, Nov 27, 2013 at 10:35 AM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:
> 4010686 220476 190220 4421382 437706 vmlinux-v3.12
So I want to save ca. 250 KiB.
> For v3.13-rc1, the top 10 is:
And here's the full list:
Disabling CONFIG_NET saves 1038404 bytes
Disabling CONFIG_INET saves 572034 bytes
Disabling CONFIG_EXT4_FS saves 328370 bytes
Disabling CONFIG_NFS_FS saves 258728 bytes
Disabling CONFIG_NETWORK_FILESYSTEMS saves 258728 bytes
Disabling CONFIG_SCSI saves 241850 bytes
Disabling CONFIG_FB saves 207496 bytes
Disabling CONFIG_AMIGA saves 160700 bytes
Disabling CONFIG_MAC saves 151134 bytes
Disabling CONFIG_ATARI saves 138392 bytes
Disabling CONFIG_NETDEVICES saves 118758 bytes
Disabling CONFIG_ETHERNET saves 118342 bytes
Disabling CONFIG_EXT3_FS saves 116310 bytes
Disabling CONFIG_SCSI_LOWLEVEL saves 98200 bytes
Disabling CONFIG_IDE saves 90042 bytes
Disabling CONFIG_NET_KEY saves 74866 bytes
Disabling CONFIG_ZORRO saves 65064 bytes
Disabling CONFIG_M68060 saves 59602 bytes
Disabling CONFIG_NET_VENDOR_NATSEMI saves 57472 bytes
Disabling CONFIG_BLK_DEV saves 52814 bytes
Disabling CONFIG_NET_VENDOR_8390 saves 47990 bytes
Disabling CONFIG_FRAMEBUFFER_CONSOLE saves 44854 bytes
Disabling CONFIG_M68040 saves 41022 bytes
Disabling CONFIG_HP300 saves 38554 bytes
Disabling CONFIG_KEYS saves 35768 bytes
Disabling CONFIG_EXT2_FS saves 35052 bytes
Disabling CONFIG_SCSI_CONSTANTS saves 34304 bytes
Disabling CONFIG_MACINTOSH_DRIVERS saves 31806 bytes
Disabling CONFIG_ADB saves 30814 bytes
Disabling CONFIG_QUOTA saves 28428 bytes
Disabling CONFIG_FB_ATARI saves 26680 bytes
Disabling CONFIG_SERIAL_PMACZILOG saves 25040 bytes
Disabling CONFIG_VME saves 24966 bytes
Disabling CONFIG_FB_ATY saves 23618 bytes
Disabling CONFIG_LOGO saves 22680 bytes
Disabling CONFIG_NET_VENDOR_AMD saves 21814 bytes
Disabling CONFIG_SWAP saves 21414 bytes
Disabling CONFIG_BLK_DEV_SD saves 20440 bytes
Disabling CONFIG_NFS_V3 saves 20318 bytes
Disabling CONFIG_M68KFPU_EMU saves 20130 bytes
Disabling CONFIG_PACKET saves 18694 bytes
Disabling CONFIG_BLK_DEV_INITRD saves 18480 bytes
Disabling CONFIG_ISO9660_FS saves 18174 bytes
Disabling CONFIG_SYSVIPC saves 16652 bytes
Disabling CONFIG_IDE_GD saves 16496 bytes
Disabling CONFIG_ZORRO_NAMES saves 16384 bytes
Disabling CONFIG_BLK_DEV_IDECD saves 16338 bytes
Disabling CONFIG_AMIGA_FLOPPY saves 16118 bytes
Disabling CONFIG_FB_AMIGA saves 16116 bytes
Disabling CONFIG_Q40 saves 15774 bytes
Disabling CONFIG_ATARI_SCSI saves 15560 bytes
Disabling CONFIG_ATARI_FLOPPY saves 15182 bytes
Disabling CONFIG_KEXEC saves 14750 bytes
Disabling CONFIG_INPUT_KEYBOARD saves 14376 bytes
Disabling CONFIG_NET_VENDOR_INTEL saves 13958 bytes
Disabling CONFIG_NET_VENDOR_I825XX saves 13958 bytes
Disabling CONFIG_AMIGA_PCMCIA saves 13648 bytes
Disabling CONFIG_IP_PNP saves 12930 bytes
Disabling CONFIG_MAC_SCSI saves 12336 bytes
Disabling CONFIG_UNIX saves 12024 bytes
Disabling CONFIG_ATARI_ETHERNAT saves 11872 bytes
Disabling CONFIG_RTC_CLASS saves 11854 bytes
Disabling CONFIG_SMC91X saves 11326 bytes
Disabling CONFIG_NET_VENDOR_SMSC saves 11326 bytes
Disabling CONFIG_IOSCHED_CFQ saves 11006 bytes
Disabling CONFIG_CRYPTO_MANAGER saves 10512 bytes
Disabling CONFIG_LBDAF saves 10128 bytes
Disabling CONFIG_BLK_DEV_SR saves 9558 bytes
Disabling CONFIG_BLK_DEV_LOOP saves 9558 bytes
Disabling CONFIG_MACSONIC saves 9510 bytes
Disabling CONFIG_IDE_PROC_FS saves 9462 bytes
Disabling CONFIG_FB_CIRRUS saves 9392 bytes
Disabling CONFIG_BINFMT_ELF saves 9018 bytes
Disabling CONFIG_DIO saves 8902 bytes
Disabling CONFIG_SUN3X saves 8464 bytes
Disabling CONFIG_LOGO_MAC_CLUT224 saves 8208 bytes
Disabling CONFIG_LOGO_LINUX_CLUT224 saves 8192 bytes
Disabling CONFIG_MVME16x saves 7704 bytes
Disabling CONFIG_ATARILANCE saves 7504 bytes
Disabling CONFIG_APNE saves 7318 bytes
Disabling CONFIG_FB_MAC saves 6566 bytes
Disabling CONFIG_BLK_DEV_RAM saves 6462 bytes
Disabling CONFIG_NATFEAT saves 6152 bytes
Disabling CONFIG_MAC8390 saves 5496 bytes
Disabling CONFIG_FB_VALKYRIE saves 5360 bytes
Disabling CONFIG_KEYBOARD_HIL_OLD saves 5000 bytes
Disabling CONFIG_NETFILTER saves 4720 bytes
Disabling CONFIG_KEYBOARD_AMIGA saves 4414 bytes
Disabling CONFIG_BOOTINFO_PROC saves 4126 bytes
Disabling CONFIG_LOGO_LINUX_VGA16 saves 4112 bytes
Disabling CONFIG_ROOT_NFS saves 4094 bytes
Disabling CONFIG_INPUT_ADBHID saves 3830 bytes
Disabling CONFIG_MAGIC_SYSRQ saves 3760 bytes
Disabling CONFIG_A2065 saves 3736 bytes
Disabling CONFIG_INOTIFY_USER saves 3664 bytes
Disabling CONFIG_ARIADNE saves 3568 bytes
Disabling CONFIG_FHANDLE saves 3472 bytes
Disabling CONFIG_XFRM_MIGRATE saves 3464 bytes
Disabling CONFIG_NET_VENDOR_APPLE saves 3198 bytes
Disabling CONFIG_MACMACE saves 3198 bytes
Disabling CONFIG_SUN3LANCE saves 3158 bytes
Disabling CONFIG_POSIX_MQUEUE saves 3156 bytes
Disabling CONFIG_BSD_PROCESS_ACCT saves 3096 bytes
Disabling CONFIG_TMPFS saves 3054 bytes
Disabling CONFIG_NFS_V2 saves 2998 bytes
Disabling CONFIG_SCSI_MAC_ESP saves 2974 bytes
Disabling CONFIG_ZISOFS saves 2968 bytes
Disabling CONFIG_APOLLO saves 2856 bytes
Disabling CONFIG_AMIGA_BUILTIN_SERIAL saves 2854 bytes
Disabling CONFIG_SCSI_PROC_FS saves 2720 bytes
Disabling CONFIG_ADB_CUDA saves 2696 bytes
Disabling CONFIG_PROC_KCORE saves 2678 bytes
Disabling CONFIG_KEYBOARD_ATARI saves 2550 bytes
Disabling CONFIG_ADB_MACII saves 2528 bytes
Disabling CONFIG_CLEANCACHE saves 2454 bytes
Disabling CONFIG_SYN_COOKIES saves 2408 bytes
Disabling CONFIG_IDE_GD_ATA saves 2304 bytes
Disabling CONFIG_KEYBOARD_SUNKBD saves 2222 bytes
Disabling CONFIG_RTC_INTF_DEV saves 1998 bytes
Disabling CONFIG_DEVTMPFS saves 1982 bytes
Disabling CONFIG_DNS_RESOLVER saves 1942 bytes
Disabling CONFIG_ATARI_PARTITION saves 1904 bytes
Disabling CONFIG_ZORRO8390 saves 1824 bytes
Disabling CONFIG_NET_VENDOR_CIRRUS saves 1814 bytes
Disabling CONFIG_MAC89x0 saves 1814 bytes
Disabling CONFIG_BOUNCE saves 1752 bytes
Disabling CONFIG_GVP11_SCSI saves 1744 bytes
Disabling CONFIG_SERIAL_PMACZILOG_CONSOLE saves 1504 bytes
Disabling CONFIG_CROSS_MEMORY_ATTACH saves 1432 bytes
Disabling CONFIG_AMIGA_Z2RAM saves 1422 bytes
Disabling CONFIG_JOLIET saves 1376 bytes
Disabling CONFIG_FB_ATY_BACKLIGHT saves 1374 bytes
Disabling CONFIG_SUN3X_ESP saves 1262 bytes
Disabling CONFIG_DNOTIFY saves 1256 bytes
Disabling CONFIG_A2091_SCSI saves 1232 bytes
Disabling CONFIG_FB_FM2 saves 1190 bytes
Disabling CONFIG_HYDRA saves 1160 bytes
Disabling CONFIG_RTC_INTF_SYSFS saves 1080 bytes
Disabling CONFIG_AMIGA_PARTITION saves 1080 bytes
Disabling CONFIG_SCSI_ZORRO7XX saves 1048 bytes
Disabling CONFIG_XZ_DEC_IA64 saves 1040 bytes
Disabling CONFIG_FB_AMIGA_AGA saves 1040 bytes
Disabling CONFIG_SERIO_SERPORT saves 1026 bytes
Disabling CONFIG_MAC_EMUMOUSEBTN saves 1024 bytes
Disabling CONFIG_RTC_INTF_PROC saves 976 bytes
Disabling CONFIG_INPUT_MOUSEDEV saves 946 bytes
Disabling CONFIG_HPLANCE saves 944 bytes
Disabling CONFIG_BLK_DEV_SR_VENDOR saves 888 bytes
Disabling CONFIG_ADB_PMU68K saves 880 bytes
Disabling CONFIG_ADB_IOP saves 880 bytes
Disabling CONFIG_BLK_DEV_BSGLIB saves 864 bytes
Disabling CONFIG_MVME147 saves 822 bytes
Disabling CONFIG_A3000_SCSI saves 782 bytes
Disabling CONFIG_BSD_DISKLABEL saves 768 bytes
Disabling CONFIG_MVME16x_NET saves 760 bytes
Disabling CONFIG_BVME6000_NET saves 758 bytes
Disabling CONFIG_MSDOS_PARTITION saves 752 bytes
Disabling CONFIG_MVME16x_SCSI saves 734 bytes
Disabling CONFIG_MVME147_SCSI saves 734 bytes
Disabling CONFIG_QUOTA_NETLINK_INTERFACE saves 672 bytes
Disabling CONFIG_SOLARIS_X86_PARTITION saves 640 bytes
Disabling CONFIG_NFETH saves 632 bytes
Disabling CONFIG_BVME6000_SCSI saves 622 bytes
Disabling CONFIG_MAC_PARTITION saves 584 bytes
Disabling CONFIG_SERIO_Q40KBD saves 582 bytes
Disabling CONFIG_BLK_DEV_FALCON_IDE saves 568 bytes
Disabling CONFIG_SUN_PARTITION saves 544 bytes
Disabling CONFIG_FB_AMIGA_OCS saves 544 bytes
Disabling CONFIG_ATARI_ETHERNEC saves 542 bytes
Disabling CONFIG_RTC_SYSTOHC saves 536 bytes
Disabling CONFIG_SYSV68_PARTITION saves 528 bytes
Disabling CONFIG_NFCON saves 486 bytes
Disabling CONFIG_NFBLOCK saves 480 bytes
Disabling CONFIG_HEARTBEAT saves 478 bytes
Disabling CONFIG_BINFMT_SCRIPT saves 432 bytes
Disabling CONFIG_BLK_DEV_Q40IDE saves 430 bytes
Disabling CONFIG_XZ_DEC_X86 saves 392 bytes
Disabling CONFIG_MINIX_SUBPARTITION saves 384 bytes
Disabling CONFIG_FB_AMIGA_ECS saves 368 bytes
Disabling CONFIG_EARLY_PRINTK saves 360 bytes
Disabling CONFIG_NFS_SWAP saves 312 bytes
Disabling CONFIG_UNIXWARE_DISKLABEL saves 304 bytes
Disabling CONFIG_KEYBOARD_HIL saves 262 bytes
Disabling CONFIG_SCSI_A4000T saves 256 bytes
Disabling CONFIG_SERIAL_CONSOLE saves 230 bytes
Disabling CONFIG_PROC_HARDWARE saves 224 bytes
Disabling CONFIG_XZ_DEC_ARMTHUMB saves 208 bytes
Disabling CONFIG_IDE_GD_ATAPI saves 184 bytes
Disabling CONFIG_BLK_DEV_GAYLE saves 152 bytes
Disabling CONFIG_NLS_ISO8859_1 saves 128 bytes
Disabling CONFIG_NLS_CODEPAGE_437 saves 128 bytes
Disabling CONFIG_CRC_T10DIF saves 118 bytes
Disabling CONFIG_XZ_DEC_SPARC saves 112 bytes
Disabling CONFIG_INPUT_MOUSEDEV_PSAUX saves 94 bytes
Disabling CONFIG_XZ_DEC_ARM saves 88 bytes
Disabling CONFIG_XZ_DEC_POWERPC saves 72 bytes
Disabling CONFIG_BLK_DEV_MAC_IDE saves 64 bytes
Disabling CONFIG_COMPAT_BRK saves 32 bytes
Disabling CONFIG_BLK_DEV_BUDDHA saves 30 bytes
Disabling CONFIG_M68020 saves 24 bytes
Disabling CONFIG_LOGO_LINUX_MONO saves 8 bytes
Disabling CONFIG_STANDALONE saves 0 bytes
Disabling CONFIG_SERIAL_PMACZILOG_TTYS saves 0 bytes
Disabling CONFIG_RTC_HCTOSYS saves 0 bytes
Disabling CONFIG_PREVENT_FIRMWARE_BUILD saves 0 bytes
Disabling CONFIG_NETFILTER_ADVANCED saves 0 bytes
Disabling CONFIG_NET_CORE saves 0 bytes
Disabling CONFIG_MISC_FILESYSTEMS saves 0 bytes
Disabling CONFIG_MD saves 0 bytes
Disabling CONFIG_LOCALVERSION_AUTO saves 0 bytes
Disabling CONFIG_IP_PNP_RARP saves 0 bytes
Disabling CONFIG_INPUT_MOUSE saves 0 bytes
Disabling CONFIG_INPUT_MISC saves 0 bytes
Disabling CONFIG_INPUT_JOYSTICK saves 0 bytes
Disabling CONFIG_ENABLE_WARN_DEPRECATED saves 0 bytes
Disabling CONFIG_ENABLE_MUST_CHECK saves 0 bytes
Disabling CONFIG_IP_PNP_DHCP saves -2 bytes
Disabling CONFIG_IP_PNP_BOOTP saves -2 bytes
Disabling CONFIG_BVME6000 saves -32 bytes
Disabling CONFIG_BSD_PROCESS_ACCT_V3 saves -64 bytes
Disabling CONFIG_FANOTIFY saves -298 bytes
Disabling CONFIG_MVME147_NET saves -4592 bytes
Disabling CONFIG_PARTITION_ADVANCED saves -6058 bytes
Disabling CONFIG_SLAB saves -9282 bytes
Disabling CONFIG_ATARI_ROM_ISA saves -20616 bytes
Disabling CONFIG_CRYPTO_MANAGER_DISABLE_TESTS saves -136576 bytes
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Evolution of Linux kernel sizes
2013-11-27 9:35 Evolution of Linux kernel sizes Geert Uytterhoeven
2013-11-27 9:38 ` Geert Uytterhoeven
@ 2013-11-27 9:59 ` Richard Cochran
2013-11-27 15:17 ` Wolfgang Denk
2 siblings, 0 replies; 4+ messages in thread
From: Richard Cochran @ 2013-11-27 9:59 UTC (permalink / raw)
To: Geert Uytterhoeven
Cc: Linux/m68k, Linux Embedded, linux-kernel@vger.kernel.org
On Wed, Nov 27, 2013 at 10:35:25AM +0100, Geert Uytterhoeven wrote:
> For v3.13-rc1, the top 10 is:
>
> Disabling CONFIG_NET saves 1038404 bytes
> Disabling CONFIG_INET saves 572034 bytes
...
> I hope you find this useful!
As another poor soul stuck with tiny resources, thank you for this
work! Now, if I could only leave networking out...
Thanks,
Richard
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Evolution of Linux kernel sizes
2013-11-27 9:35 Evolution of Linux kernel sizes Geert Uytterhoeven
2013-11-27 9:38 ` Geert Uytterhoeven
2013-11-27 9:59 ` Richard Cochran
@ 2013-11-27 15:17 ` Wolfgang Denk
2 siblings, 0 replies; 4+ messages in thread
From: Wolfgang Denk @ 2013-11-27 15:17 UTC (permalink / raw)
To: Geert Uytterhoeven
Cc: Linux/m68k, Linux Embedded, linux-kernel@vger.kernel.org
Dear Geert,
In message <CAMuHMdUr2Vr9+STwcYf1PcB=PF+u3SJxU3LYnzqQ+vdbDsp71A@mail.gmail.com> you wrote:
>
> Below are the static kernel sizes (as reported by "size") for m68k
> multi-platform kernels (m68k/multi_defconfig), for kernel versions
> 2.6.28 to 3.12:
>
> text data bss dec hex filename
...
> 4010686 220476 190220 4421382 437706 vmlinux-v3.12
It's even more dramatic if you look further back. The U-Boot README
still has examples of 2.4.4 kernels for PowerPC _including_ network
support:
-> tools/mkimage -l examples/uImage.TQM850L
Image Name: 2.4.4 kernel for TQM850L
Created: Wed Jul 19 02:34:59 2000
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 335725 Bytes = 327.86 kB = 0.32 MB
Load Address: 0x00000000
Entry Point: 0x00000000
resp. the same kernel using an uncompressed image:
Image Type: PowerPC Linux Kernel Image (uncompressed)
Data Size: 792160 Bytes = 773.59 kB = 0.76 MB
Those were the days then, 13 years ago...
Today:
Image Name: Linux-3.12.0-11101-gfe9baba
Created: Wed Nov 27 15:05:33 2013
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 1509145 Bytes = 1473.77 kB = 1.44 MB
Load Address: 00000000
Entry Point: 00000000
Image Type: PowerPC Linux Kernel Image (uncompressed)
Data Size: 3172240 Bytes = 3097.89 kB = 3.03 MB
Compressed: 1509145 / 335725 = 4.50
Uncompressed: 3172240 / 792160 = 4.00
[1] http://git.denx.de/?p=u-boot.git;a=blob;f=README#l5142
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
I think it's a new feature. Don't tell anyone it was an accident. :-)
-- Larry Wall on s/foo/bar/eieio in <10911@jpl-devvax.JPL.NASA.GOV>
^ permalink raw reply [flat|nested] 4+ messages in thread
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