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https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
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- C 98.2%
- Assembly 1%
- Makefile 0.3%
- Shell 0.2%
- Python 0.1%
| Filename | Latest commit message | Latest commit date |
|---|---|---|
4a336a23d6
No need to iterate over strings, just copy in one efficient memcpy() call.
Tested:
time perf record "(for f in `seq 1 3000` ; do ip netns add tast$f; done)"
[ perf record: Woken up 10 times to write data ]
[ perf record: Captured and wrote 8.224 MB perf.data (~359301 samples) ]
real 0m52.554s # instead of 1m7.492s
user 0m0.309s
sys 0m51.375s # instead of 1m6.875s
9.88% ip [kernel.kallsyms] [k] netlink_broadcast_filtered
8.86% ip [kernel.kallsyms] [k] string
7.37% ip [kernel.kallsyms] [k] __ip6addrlbl_add
5.68% ip [kernel.kallsyms] [k] netlink_has_listeners
5.52% ip [kernel.kallsyms] [k] memcpy_erms
4.76% ip [kernel.kallsyms] [k] __alloc_skb
4.54% ip [kernel.kallsyms] [k] vsnprintf
3.94% ip [kernel.kallsyms] [k] format_decode
3.80% ip [kernel.kallsyms] [k] kmem_cache_alloc_node_trace
3.71% ip [kernel.kallsyms] [k] kmem_cache_alloc_node
3.66% ip [kernel.kallsyms] [k] kobject_uevent_env
3.38% ip [kernel.kallsyms] [k] strlen
2.65% ip [kernel.kallsyms] [k] _raw_spin_lock_irqsave
2.20% ip [kernel.kallsyms] [k] kfree
2.09% ip [kernel.kallsyms] [k] memset_erms
2.07% ip [kernel.kallsyms] [k] ___cache_free
1.95% ip [kernel.kallsyms] [k] kmem_cache_free
1.91% ip [kernel.kallsyms] [k] _raw_read_lock
1.45% ip [kernel.kallsyms] [k] ksize
1.25% ip [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore
1.00% ip [kernel.kallsyms] [k] widen_string
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.