我正在DPDK中构建Helloworld应用程序。我收到错误消息No free hugepages reported in hugepages-1048567。
（1）我使用RTE_TARGET=x86_64-linuxapp-native-gcc构建DPDK-18.11。
（2）我运行usertools/dpdk-setup.sh，运行[15]（构建DPDK）。
（3）运行[22]，分配大页面。我设置了1024个大页面。
（4）运行[18]，插入igb_uio模块。
（5）运行[24]，将我的NIC（e1000e）绑定到igb_uio模块。
然后，我转到examples/helloworld/，运行make来构建应用程序。当我跑步
./build/app/helloworld -l 0-1 -n 4，我得到以下提名（没有免费的大页）：
xiarui@wcf-OptiPlex-7060:~/dpdk/dpdk-18.11/examples/helloworld/build/app$ sudo ./helloworld -l 0 -n 4
EAL: Detected 12 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: PCI device 0000:00:1f.6 on NUMA socket -1
EAL: Invalid NUMA socket, default to 0
EAL: probe driver: 8086:15bb net_e1000_em
hello from core 0
我已经在设置脚本中分配了hugepages，并获得以下输出：
AnonHugePages: 0 kB
ShmemHugePages: 0 kB
HugePages_Total: 1024
HugePages_Free: 1024
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
此外，我发现e1000e无法绑定到VFIO，所以我只使用igb_uio驱动程序。
Network devices using DPDK-compatible driver
============================================
0000:00:1f.6 'Ethernet Connection (7) I219-LM 15bb' drv=igb_uio unused=e1000e
我的主机配置文件是： CPU：
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 12
On-line CPU(s) list: 0-11
Thread(s) per core: 2
Core(s) per socket: 6
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 158
Model name: Intel(R) Core(TM) i7-8700 CPU @ 3.20GHz
Stepping: 10
CPU MHz: 800.493
CPU max MHz: 4600.0000
CPU min MHz: 800.0000
BogoMIPS: 6384.00
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 12288K
NUMA node0 CPU(s): 0-11
内存：
xiarui@wcf-OptiPlex-7060:~/dpdk/dpdk-18.11/examples/helloworld/build/app$ free -h
total used free shared buff/cache available
Mem: 7.6G 2.4G 4.4G 159M 809M 4.8G
Swap: 2.0G 0B 2.0G
我运行pktgen-3.6.0时情况变得更糟。我收到以下错误：
>>> sdk '/home/xiarui/dpdk/dpdk-18.11', target 'x86_64-native-linuxapp-gcc'
Trying ./app/x86_64-native-linuxapp-gcc/pktgen
sudo -E ./app/x86_64-native-linuxapp-gcc/pktgen -l 0-1 -n 4 --proc-type auto --log-level 7 --file-prefix pg -- -T -P --crc-strip -m 1.0 -f themes/black-yellow.theme
Copyright (c) <2010-2019>, Intel Corporation. All rights reserved. Powered by DPDK
EAL: Detected 12 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Auto-detected process type: PRIMARY
EAL: Multi-process socket /var/run/dpdk/pg/mp_socket
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: PCI device 0000:00:1f.6 on NUMA socket -1
EAL: Invalid NUMA socket, default to 0
EAL: probe driver: 8086:15bb net_e1000_em
Lua 5.3.3 Copyright (C) 1994-2016 Lua.org, PUC-Rio
*** Copyright (c) <2010-2019>, Intel Corporation. All rights reserved.
*** Pktgen created by: Keith Wiles -- >>> Powered by DPDK <<<
Initialize Port 0 -- TxQ 1, RxQ 1, Src MAC 8c:ec:4b:a5:17:4f
eth_em_start(): Unable to initialize the hardware
!PANIC!: rte_eth_dev_start: port=0, Input/output error
PANIC in pktgen_config_ports():
rte_eth_dev_start: port=0, Input/output error6: [./app/x86_64-native-linuxapp-gcc/pktgen(_start+0x2a) [0x56038a3d29ba]]
5: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7fe0b33a3b97]]
4: [./app/x86_64-native-linuxapp-gcc/pktgen(main+0xe52) [0x56038a3ca782]]
3: [./app/x86_64-native-linuxapp-gcc/pktgen(pktgen_config_ports+0x1ef1) [0x56038a403761]]
2: [./app/x86_64-native-linuxapp-gcc/pktgen(__rte_panic+0xc5) [0x56038a3bb544]]
1: [./app/x86_64-native-linuxapp-gcc/pktgen(rte_dump_stack+0x2e) [0x56038a4f5f4e]]
你能和我分享一些想法吗？谢谢您的宝贵时间。
答案 0 :(得分：1)
df['instance'] = pandas.Series(['1', '1', '2', '2', '3', '3']) df['status'] = pandas.Series(['p', 'p', 'f', 'f', 'f', 'f']) df['event'] = pandas.Series(['a', 'b', 'a', 'c', 'a', 'd']) df['status'] = df['status'].astype('category') df['status'].cat.set_categories(['p', 'f'], inplace=True) df['event'] = df['event'].astype('category') df['event'].cat.set_categories(df['event'].unique(), inplace=True) pt = df.pivot(index='instance', columns='event') Output: status event a b c d instance 1 p p NaN NaN 2 f NaN f NaN 3 f NaN NaN f
没有免费的1GB大页面不是错误，这只是一个信息。
您获得了grid-template-columns:1fr 1fr;
的输出，因此您的hello world应用程序可以正常工作，恭喜！
答案 1 :(得分：-1)
我在 string the_date
-rw-r--r-- 12 30067 10224
-rw-r--r-- 64 30067 10224
-rw-r--r-- 64 30067 10224
中运行df_all_files = pd.DataFrame(df_all_files.string.str.rsplit('',1).tolist(), columns = ['string','the_date'])
，但情况很糟糕。我收到以下错误：
testpmd我想，看来该应用无法从大页面分配内存。
谢谢您的时间。
编辑
我想我对usertools/dpdk-setup.sh太刻薄了。因此，我尝试分配Launching app
EAL: Detected 12 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: PCI device 0000:00:1f.6 on NUMA socket -1
EAL: Invalid NUMA socket, default to 0
EAL: probe driver: 8086:15bb net_e1000_em
Interactive-mode selected
testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=203456, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
EAL: Error - exiting with code: 1
Cause: Creation of mbuf pool for socket 0 failed: Cannot allocate memory
个大页面。然后，一切正常。
hugepage allocation我在VBox中发现，我只有两个lcore，我只分配了128个大页面，并且一切正常。但是，当我使用具有12个内核的桌面时，128个大页面是不够的。
您能分享一些分配大页面的原则吗？或越多越好。感谢您分享您的想法。