Eric Dumazet
72a3effaf6
[NET]: Size listen hash tables using backlog hint ...
We currently allocate a fixed size (TCP_SYNQ_HSIZE=512) slots hash table for
each LISTEN socket, regardless of various parameters (listen backlog for
example)
On x86_64, this means order-1 allocations (might fail), even for 'small'
sockets, expecting few connections. On the contrary, a huge server wanting a
backlog of 50000 is slowed down a bit because of this fixed limit.
This patch makes the sizing of listen hash table a dynamic parameter,
depending of :
- net.core.somaxconn tunable (default is 128)
- net.ipv4.tcp_max_syn_backlog tunable (default : 256, 1024 or 128)
- backlog value given by user application (2nd parameter of listen())
For large allocations (bigger than PAGE_SIZE), we use vmalloc() instead of
kmalloc().
We still limit memory allocation with the two existing tunables (somaxconn &
tcp_max_syn_backlog). So for standard setups, this patch actually reduce RAM
usage.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02 21:21:44 -08:00
ACPI: Change ACPI to use dev_archdata instead of firmware_data
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
ACPI: Change ACPI to use dev_archdata instead of firmware_data
2006-12-01 14:52:01 -08:00
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
2006-12-01 16:41:27 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6
2006-12-01 16:41:07 -08:00
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
2006-12-01 16:44:02 -08:00
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6
2006-12-01 16:41:07 -08:00
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
2006-12-01 16:41:27 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
2006-12-01 16:41:27 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
ACPI: Change ACPI to use dev_archdata instead of firmware_data
2006-12-01 14:52:01 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
[NET] rules: Add support to invert selectors
2006-12-02 21:21:42 -08:00
V4L/DVB (4666): Ensure the WM8775 driver is loaded generically for any board.
2006-10-03 15:13:48 -03:00
[NET]: Size listen hash tables using backlog hint
2006-12-02 21:21:44 -08:00
IB/cm: Fix automatic path migration support
2006-11-29 15:33:10 -08:00
[PATCH] add missing libsas include to fix s390 compilation.
2006-11-28 17:26:50 -08:00
Driver core: convert sound core to use struct device
2006-12-01 14:52:01 -08:00
fix file specification in comments
2006-10-03 23:01:26 +02:00
72a3effaf6